diff --git a/.gitmodules b/.gitmodules
deleted file mode 100755
index 8ccd48df4..000000000
--- a/.gitmodules
+++ /dev/null
@@ -1,9 +0,0 @@
-[submodule "resources/scripts/transka"]
-	path = resources/scripts/transka
-	url = https://github.com/martinrotter/transka.git
-[submodule "resources/scripts/7za"]
-	path = resources/scripts/7za
-	url = https://github.com/martinrotter/7za.git
-[submodule "resources/scripts/nsis"]
-	path = resources/scripts/nsis
-	url = https://github.com/martinrotter/nsis.git
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a960786a3..17d829362 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -67,7 +67,7 @@ set(APP_AUTHOR "Martin Rotter")
 set(APP_COPYRIGHT "\\251 2011-${YEAR} ${APP_AUTHOR}")
 set(APP_REVERSE_NAME "io.github.martinrotter.rssguard")
 set(APP_DONATE_URL "https://github.com/sponsors/martinrotter")
-set(APP_VERSION "4.5.0")
+set(APP_VERSION "4.5.1")
 
 set(APP_URL "https://github.com/martinrotter/rssguard")
 set(APP_URL_DOCUMENTATION "https://github.com/martinrotter/rssguard/blob/${APP_VERSION}/resources/docs/Documentation.md")
diff --git a/resources/scripts/github-actions/build-windows.ps1 b/resources/scripts/github-actions/build-windows.ps1
index 05684ab0e..e0a5a1561 100755
--- a/resources/scripts/github-actions/build-windows.ps1
+++ b/resources/scripts/github-actions/build-windows.ps1
@@ -24,13 +24,13 @@ if ($use_qt5 -eq "ON") {
   $qt_version = "5.15.2"
 }
 else {
-  $qt_version = "6.5.2"
+  $qt_version = "6.4.3"
 }
 
-$maria_version = "10.6.14"
+$maria_version = "10.6.15"
 $maria_link = "https://archive.mariadb.org/mariadb-$maria_version/winx64-packages/mariadb-$maria_version-winx64.zip"
 $maria_output = "maria.zip"
-$cmake_version = "3.27.1"
+$cmake_version = "3.27.4"
 $cmake_link = "https://github.com/Kitware/CMake/releases/download/v$cmake_version/cmake-$cmake_version-windows-x86_64.zip"
 $cmake_output = "cmake.zip"