diff --git a/prov.sh b/prov.sh
index ccfe91a..713d635 100644
--- a/prov.sh
+++ b/prov.sh
@@ -8,8 +8,23 @@ function main() {
     prov-$RELEASE
 }
 
+function install-jq {
+    if which jq >/dev/null 2>&1 ; then
+        return
+    fi
+    apt install -y jq
+}
+
+function install-curl {
+    if which curl >/dev/null 2>&1 ; then
+        return
+    fi
+    apt install -y curl
+}
+
 function detect-mirror-country() {
-    apt install -y jq curl
+    install-jq
+    install-curl
     curl ipinfo.io | jq -r .country
 }
 
@@ -59,6 +74,10 @@ zstd
 }
 
 function install-age () {
+    if which age >/dev/null 2>&1 ; then
+        return
+    fi
+
     cd /tmp
     git clone https://filippo.io/age && cd age
     go build -o . filippo.io/age/cmd/...