diff --git a/Sources/Secretive.xcodeproj/project.pbxproj b/Sources/Secretive.xcodeproj/project.pbxproj
index b6f319d..0e905ba 100644
--- a/Sources/Secretive.xcodeproj/project.pbxproj
+++ b/Sources/Secretive.xcodeproj/project.pbxproj
@@ -591,7 +591,7 @@
 			attributes = {
 				BuildIndependentTargetsInParallel = YES;
 				LastSwiftUpdateCheck = 2600;
-				LastUpgradeCheck = 2600;
+				LastUpgradeCheck = 2640;
 				ORGANIZATIONNAME = "Max Goedjen";
 				TargetAttributes = {
 					50617D7E23FCE48D0099B055 = {
diff --git a/Sources/Secretive.xcodeproj/xcshareddata/xcschemes/PackageTests.xcscheme b/Sources/Secretive.xcodeproj/xcshareddata/xcschemes/PackageTests.xcscheme
index 7b1c414..4c4077e 100644
--- a/Sources/Secretive.xcodeproj/xcshareddata/xcschemes/PackageTests.xcscheme
+++ b/Sources/Secretive.xcodeproj/xcshareddata/xcschemes/PackageTests.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "2600"
+   LastUpgradeVersion = "2640"
    version = "1.7">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/Sources/Secretive.xcodeproj/xcshareddata/xcschemes/SecretAgent.xcscheme b/Sources/Secretive.xcodeproj/xcshareddata/xcschemes/SecretAgent.xcscheme
index 4c9211b..726d20d 100644
--- a/Sources/Secretive.xcodeproj/xcshareddata/xcschemes/SecretAgent.xcscheme
+++ b/Sources/Secretive.xcodeproj/xcshareddata/xcschemes/SecretAgent.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "2600"
+   LastUpgradeVersion = "2640"
    version = "1.7">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/Sources/Secretive.xcodeproj/xcshareddata/xcschemes/Secretive.xcscheme b/Sources/Secretive.xcodeproj/xcshareddata/xcschemes/Secretive.xcscheme
index 24a14c8..6f89739 100644
--- a/Sources/Secretive.xcodeproj/xcshareddata/xcschemes/Secretive.xcscheme
+++ b/Sources/Secretive.xcodeproj/xcshareddata/xcschemes/Secretive.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "2600"
+   LastUpgradeVersion = "2640"
    version = "1.7">
    <BuildAction
       parallelizeBuildables = "YES"