diff --git a/debian/copyright b/debian/copyright
index 337fbf9..1d45f48 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -12,7 +12,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 On Debian GNU/Linux systems, the complete text of the GNU General Public
 License can be found in `/usr/share/common-licenses/GPL'.
diff --git a/src/adc/adcconst.h b/src/adc/adcconst.h
index 503dc3f..a9a1f44 100644
--- a/src/adc/adcconst.h
+++ b/src/adc/adcconst.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/adc/message.c b/src/adc/message.c
index 0d52ac1..e394700 100644
--- a/src/adc/message.c
+++ b/src/adc/message.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/adc/message.h b/src/adc/message.h
index 3558524..c8c4f15 100644
--- a/src/adc/message.h
+++ b/src/adc/message.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/adc/sid.c b/src/adc/sid.c
index 35e3388..9cdd2af 100644
--- a/src/adc/sid.c
+++ b/src/adc/sid.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/adc/sid.h b/src/adc/sid.h
index 9d8d08c..4cf1cd8 100644
--- a/src/adc/sid.h
+++ b/src/adc/sid.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/auth.c b/src/core/auth.c
index 3cb9faa..038e28f 100644
--- a/src/core/auth.c
+++ b/src/core/auth.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/auth.h b/src/core/auth.h
index 4c904ff..2955b35 100644
--- a/src/core/auth.h
+++ b/src/core/auth.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/command_parser.c b/src/core/command_parser.c
index 628736b..8115a5e 100644
--- a/src/core/command_parser.c
+++ b/src/core/command_parser.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/command_parser.h b/src/core/command_parser.h
index e191129..8c8f9b4 100644
--- a/src/core/command_parser.h
+++ b/src/core/command_parser.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/commands.c b/src/core/commands.c
index ef3e4e5..1ee4a0c 100644
--- a/src/core/commands.c
+++ b/src/core/commands.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/commands.h b/src/core/commands.h
index 18fb0eb..e88ad8d 100644
--- a/src/core/commands.h
+++ b/src/core/commands.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/config.c b/src/core/config.c
index 1c532b7..dc1a0b1 100644
--- a/src/core/config.c
+++ b/src/core/config.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/config.h b/src/core/config.h
index 27a2c68..0da1e20 100644
--- a/src/core/config.h
+++ b/src/core/config.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/eventid.h b/src/core/eventid.h
index 6d5c1a2..f71d817 100644
--- a/src/core/eventid.h
+++ b/src/core/eventid.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/eventqueue.c b/src/core/eventqueue.c
index dcb494f..c3cabb4 100644
--- a/src/core/eventqueue.c
+++ b/src/core/eventqueue.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/eventqueue.h b/src/core/eventqueue.h
index beeda6c..ee6d5df 100644
--- a/src/core/eventqueue.h
+++ b/src/core/eventqueue.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/hub.c b/src/core/hub.c
index 167f5a6..82aa06b 100644
--- a/src/core/hub.c
+++ b/src/core/hub.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/hub.h b/src/core/hub.h
index 69f30ef..d65ea64 100644
--- a/src/core/hub.h
+++ b/src/core/hub.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/hubevent.c b/src/core/hubevent.c
index e1a7de4..bed6f1b 100644
--- a/src/core/hubevent.c
+++ b/src/core/hubevent.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/hubevent.h b/src/core/hubevent.h
index f73c570..598a1cc 100644
--- a/src/core/hubevent.h
+++ b/src/core/hubevent.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/inf.c b/src/core/inf.c
index bfce6e5..85c57a7 100644
--- a/src/core/inf.c
+++ b/src/core/inf.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/inf.h b/src/core/inf.h
index 99d3b31..f0d12db 100644
--- a/src/core/inf.h
+++ b/src/core/inf.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/ioqueue.c b/src/core/ioqueue.c
index 270dca5..840b01b 100644
--- a/src/core/ioqueue.c
+++ b/src/core/ioqueue.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/ioqueue.h b/src/core/ioqueue.h
index 3dd9cb7..cc4d2aa 100644
--- a/src/core/ioqueue.h
+++ b/src/core/ioqueue.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/main.c b/src/core/main.c
index 00e90c2..6898e4e 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/netevent.c b/src/core/netevent.c
index dde65ed..c7c51ef 100644
--- a/src/core/netevent.c
+++ b/src/core/netevent.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/netevent.h b/src/core/netevent.h
index 6dedf00..1ab454d 100644
--- a/src/core/netevent.h
+++ b/src/core/netevent.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/plugincallback.c b/src/core/plugincallback.c
index e10c9f1..e4b38c8 100644
--- a/src/core/plugincallback.c
+++ b/src/core/plugincallback.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/plugincallback.h b/src/core/plugincallback.h
index 2d9f559..547f41f 100644
--- a/src/core/plugincallback.h
+++ b/src/core/plugincallback.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/plugininvoke.c b/src/core/plugininvoke.c
index b624b79..2ab1359 100644
--- a/src/core/plugininvoke.c
+++ b/src/core/plugininvoke.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/plugininvoke.h b/src/core/plugininvoke.h
index 87b266d..31dccee 100644
--- a/src/core/plugininvoke.h
+++ b/src/core/plugininvoke.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/pluginloader.c b/src/core/pluginloader.c
index 17ed335..121fce0 100644
--- a/src/core/pluginloader.c
+++ b/src/core/pluginloader.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/pluginloader.h b/src/core/pluginloader.h
index a5c55af..e09492c 100644
--- a/src/core/pluginloader.h
+++ b/src/core/pluginloader.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/probe.c b/src/core/probe.c
index b27d86a..d6be0cc 100644
--- a/src/core/probe.c
+++ b/src/core/probe.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/probe.h b/src/core/probe.h
index 4d70695..f7dd6a6 100644
--- a/src/core/probe.h
+++ b/src/core/probe.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/route.c b/src/core/route.c
index 6af5aa4..0ff8998 100644
--- a/src/core/route.c
+++ b/src/core/route.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/route.h b/src/core/route.h
index 471ba10..cfa3dbf 100644
--- a/src/core/route.h
+++ b/src/core/route.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/user.c b/src/core/user.c
index aeb66d4..cc7522e 100644
--- a/src/core/user.c
+++ b/src/core/user.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/user.h b/src/core/user.h
index 711e27c..8cf5a54 100644
--- a/src/core/user.h
+++ b/src/core/user.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/usermanager.c b/src/core/usermanager.c
index e3bba1f..f6ac3a8 100644
--- a/src/core/usermanager.c
+++ b/src/core/usermanager.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/core/usermanager.h b/src/core/usermanager.h
index 62d45d1..f69e572 100644
--- a/src/core/usermanager.h
+++ b/src/core/usermanager.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/backend.c b/src/network/backend.c
index ac33c33..0fb19cd 100644
--- a/src/network/backend.c
+++ b/src/network/backend.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/backend.h b/src/network/backend.h
index 0448d69..eccd69e 100644
--- a/src/network/backend.h
+++ b/src/network/backend.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/common.h b/src/network/common.h
index 6d07a13..aa9ded3 100644
--- a/src/network/common.h
+++ b/src/network/common.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/connection.c b/src/network/connection.c
index a96da10..58bd5b5 100644
--- a/src/network/connection.c
+++ b/src/network/connection.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/connection.h b/src/network/connection.h
index f4e168b..140fd78 100644
--- a/src/network/connection.h
+++ b/src/network/connection.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/dnsresolver.c b/src/network/dnsresolver.c
index fd6ac91..e8d96ab 100644
--- a/src/network/dnsresolver.c
+++ b/src/network/dnsresolver.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/dnsresolver.h b/src/network/dnsresolver.h
index 398a54f..f22ed9f 100644
--- a/src/network/dnsresolver.h
+++ b/src/network/dnsresolver.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/epoll.c b/src/network/epoll.c
index ac38595..deec217 100644
--- a/src/network/epoll.c
+++ b/src/network/epoll.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/ipcalc.c b/src/network/ipcalc.c
index 4942457..ab28a01 100644
--- a/src/network/ipcalc.c
+++ b/src/network/ipcalc.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/ipcalc.h b/src/network/ipcalc.h
index c1bd494..f7f55e9 100644
--- a/src/network/ipcalc.h
+++ b/src/network/ipcalc.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/kqueue.c b/src/network/kqueue.c
index 7727d4e..f6c1ce0 100644
--- a/src/network/kqueue.c
+++ b/src/network/kqueue.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/network.c b/src/network/network.c
index 890c63e..cb23ce9 100644
--- a/src/network/network.c
+++ b/src/network/network.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/network.h b/src/network/network.h
index fb34d12..b7b369b 100644
--- a/src/network/network.h
+++ b/src/network/network.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/notify.c b/src/network/notify.c
index 110ef7b..f1190d9 100644
--- a/src/network/notify.c
+++ b/src/network/notify.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/notify.h b/src/network/notify.h
index e8337cb..a1f70d7 100644
--- a/src/network/notify.h
+++ b/src/network/notify.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/openssl.c b/src/network/openssl.c
index 9ab4176..3f67269 100644
--- a/src/network/openssl.c
+++ b/src/network/openssl.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/select.c b/src/network/select.c
index eb0cf56..bf3ae4e 100644
--- a/src/network/select.c
+++ b/src/network/select.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/timeout.c b/src/network/timeout.c
index c9b1752..0383e8a 100644
--- a/src/network/timeout.c
+++ b/src/network/timeout.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along wtimeout_evtith this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along wtimeout_evtith this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/timeout.h b/src/network/timeout.h
index ce1b0df..a1995d2 100644
--- a/src/network/timeout.h
+++ b/src/network/timeout.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/timer.c b/src/network/timer.c
index 36d4fda..776483f 100644
--- a/src/network/timer.c
+++ b/src/network/timer.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/network/tls.h b/src/network/tls.h
index dc959ba..43715d8 100644
--- a/src/network/tls.h
+++ b/src/network/tls.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugin_api/command_api.h b/src/plugin_api/command_api.h
index de3efaa..32faee4 100644
--- a/src/plugin_api/command_api.h
+++ b/src/plugin_api/command_api.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugin_api/handle.h b/src/plugin_api/handle.h
index cbf4266..a145cb7 100644
--- a/src/plugin_api/handle.h
+++ b/src/plugin_api/handle.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugin_api/message_api.h b/src/plugin_api/message_api.h
index 3b970a1..ec4373f 100644
--- a/src/plugin_api/message_api.h
+++ b/src/plugin_api/message_api.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugin_api/types.h b/src/plugin_api/types.h
index d34f18b..60ce183 100644
--- a/src/plugin_api/types.h
+++ b/src/plugin_api/types.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugins/mod_auth_simple.c b/src/plugins/mod_auth_simple.c
index 4e543e4..b07e9b4 100644
--- a/src/plugins/mod_auth_simple.c
+++ b/src/plugins/mod_auth_simple.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugins/mod_auth_sqlite.c b/src/plugins/mod_auth_sqlite.c
index ce39dc9..e95c95c 100644
--- a/src/plugins/mod_auth_sqlite.c
+++ b/src/plugins/mod_auth_sqlite.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugins/mod_chat_history.c b/src/plugins/mod_chat_history.c
index 7e7ea21..fb58c6b 100644
--- a/src/plugins/mod_chat_history.c
+++ b/src/plugins/mod_chat_history.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugins/mod_chat_history_sqlite.c b/src/plugins/mod_chat_history_sqlite.c
index d2f5814..22ddc0c 100644
--- a/src/plugins/mod_chat_history_sqlite.c
+++ b/src/plugins/mod_chat_history_sqlite.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugins/mod_chat_is_privileged.c b/src/plugins/mod_chat_is_privileged.c
index b66c1e3..c946154 100644
--- a/src/plugins/mod_chat_is_privileged.c
+++ b/src/plugins/mod_chat_is_privileged.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugins/mod_chat_only.c b/src/plugins/mod_chat_only.c
index b1876f5..b485f69 100644
--- a/src/plugins/mod_chat_only.c
+++ b/src/plugins/mod_chat_only.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugins/mod_example.c b/src/plugins/mod_example.c
index d079233..7006164 100644
--- a/src/plugins/mod_example.c
+++ b/src/plugins/mod_example.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugins/mod_logging.c b/src/plugins/mod_logging.c
index 604c040..46791e2 100644
--- a/src/plugins/mod_logging.c
+++ b/src/plugins/mod_logging.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugins/mod_no_guest_downloads.c b/src/plugins/mod_no_guest_downloads.c
index ab0ecd9..7bfafb4 100644
--- a/src/plugins/mod_no_guest_downloads.c
+++ b/src/plugins/mod_no_guest_downloads.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugins/mod_topic.c b/src/plugins/mod_topic.c
index a1a44bc..a95e037 100644
--- a/src/plugins/mod_topic.c
+++ b/src/plugins/mod_topic.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/plugins/mod_welcome.c b/src/plugins/mod_welcome.c
index 0c8a36a..60f35bc 100644
--- a/src/plugins/mod_welcome.c
+++ b/src/plugins/mod_welcome.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/system.h.in b/src/system.h.in
index 41f50e9..058b3fd 100644
--- a/src/system.h.in
+++ b/src/system.h.in
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
@@ -142,7 +142,7 @@
 
 /*
  * Detect operating system info.
- * See: http://predef.sourceforge.net/
+ * See: https://sourceforge.net/p/predef/wiki/Home/
  */
 #if defined(__linux__)
 #define OPSYS "Linux"
diff --git a/src/tools/adcclient.c b/src/tools/adcclient.c
index efd315c..c9e173c 100644
--- a/src/tools/adcclient.c
+++ b/src/tools/adcclient.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/tools/adcclient.h b/src/tools/adcclient.h
index 1ca38b3..cf6002f 100644
--- a/src/tools/adcclient.h
+++ b/src/tools/adcclient.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/tools/adcrush.c b/src/tools/adcrush.c
index 28dc931..b10ab1a 100644
--- a/src/tools/adcrush.c
+++ b/src/tools/adcrush.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/tools/admin.c b/src/tools/admin.c
index a753d8e..e2cfd24 100644
--- a/src/tools/admin.c
+++ b/src/tools/admin.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/tools/fuzzer.h b/src/tools/fuzzer.h
index ff52927..f309ee0 100644
--- a/src/tools/fuzzer.h
+++ b/src/tools/fuzzer.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/tools/uhub-passwd.c b/src/tools/uhub-passwd.c
index 2599995..af4d86b 100644
--- a/src/tools/uhub-passwd.c
+++ b/src/tools/uhub-passwd.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/uhub.h b/src/uhub.h
index 4069291..4a077c7 100644
--- a/src/uhub.h
+++ b/src/uhub.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/cbuffer.c b/src/util/cbuffer.c
index 642a42d..6193c63 100644
--- a/src/util/cbuffer.c
+++ b/src/util/cbuffer.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/cbuffer.h b/src/util/cbuffer.h
index a81eee8..c6e22be 100644
--- a/src/util/cbuffer.h
+++ b/src/util/cbuffer.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/config_token.c b/src/util/config_token.c
index cdd1de8..653bb47 100644
--- a/src/util/config_token.c
+++ b/src/util/config_token.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/config_token.h b/src/util/config_token.h
index 1c8431b..f86d426 100644
--- a/src/util/config_token.h
+++ b/src/util/config_token.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/credentials.c b/src/util/credentials.c
index ee72627..bb818d1 100644
--- a/src/util/credentials.c
+++ b/src/util/credentials.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/credentials.h b/src/util/credentials.h
index 540b96e..fdafa06 100644
--- a/src/util/credentials.h
+++ b/src/util/credentials.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/floodctl.c b/src/util/floodctl.c
index 56fc16f..8166dd0 100644
--- a/src/util/floodctl.c
+++ b/src/util/floodctl.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/floodctl.h b/src/util/floodctl.h
index 0958a2b..6f62621 100644
--- a/src/util/floodctl.h
+++ b/src/util/floodctl.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/getopt.c b/src/util/getopt.c
index 76df0b3..6a9dec7 100644
--- a/src/util/getopt.c
+++ b/src/util/getopt.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/getopt.h b/src/util/getopt.h
index 2438034..91bb967 100644
--- a/src/util/getopt.h
+++ b/src/util/getopt.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/list.c b/src/util/list.c
index 9e67dc8..0df3b4b 100644
--- a/src/util/list.c
+++ b/src/util/list.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/list.h b/src/util/list.h
index e9f882f..97d75f7 100644
--- a/src/util/list.h
+++ b/src/util/list.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/log.c b/src/util/log.c
index 0c8aa23..cf8cca0 100644
--- a/src/util/log.c
+++ b/src/util/log.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/log.h b/src/util/log.h
index 3a1fe8a..88f6d65 100644
--- a/src/util/log.h
+++ b/src/util/log.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/memory.c b/src/util/memory.c
index 623dead..8d72e11 100644
--- a/src/util/memory.c
+++ b/src/util/memory.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/memory.h b/src/util/memory.h
index 3011400..e693383 100644
--- a/src/util/memory.h
+++ b/src/util/memory.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/misc.c b/src/util/misc.c
index b0ab2f9..bbce1f8 100644
--- a/src/util/misc.c
+++ b/src/util/misc.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/misc.h b/src/util/misc.h
index c55f05a..4d11a30 100644
--- a/src/util/misc.h
+++ b/src/util/misc.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/rbtree.c b/src/util/rbtree.c
index 2f2be77..a27b40e 100644
--- a/src/util/rbtree.c
+++ b/src/util/rbtree.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/rbtree.h b/src/util/rbtree.h
index 2161d29..1155cc8 100644
--- a/src/util/rbtree.h
+++ b/src/util/rbtree.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/threads.c b/src/util/threads.c
index 9cf8094..dc6b1b6 100644
--- a/src/util/threads.c
+++ b/src/util/threads.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/threads.h b/src/util/threads.h
index 26f073b..9c37baf 100644
--- a/src/util/threads.h
+++ b/src/util/threads.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/tiger.c b/src/util/tiger.c
index c7cd4ef..e83c018 100644
--- a/src/util/tiger.c
+++ b/src/util/tiger.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/util/tiger.h b/src/util/tiger.h
index 2e59de7..b7642ee 100644
--- a/src/util/tiger.h
+++ b/src/util/tiger.h
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/version.h.in b/src/version.h.in
index 01016d1..b4e33ce 100644
--- a/src/version.h.in
+++ b/src/version.h.in
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */