diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 19efafd1..1abf12ef 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -181,7 +181,7 @@ jobs:
     - name: Install Qt
       uses: jurplel/install-qt-action@v3
       with:
-        version: 6.6.3
+        version: 6.7.1
         arch: win64_msvc2019_64
     - name: Setup dev env
       uses: ilammy/msvc-dev-cmd@v1
diff --git a/prepare_osx_build_environment.sh b/prepare_osx_build_environment.sh
index 413cea83..c990ea91 100755
--- a/prepare_osx_build_environment.sh
+++ b/prepare_osx_build_environment.sh
@@ -4,12 +4,12 @@
 set -e
 
 ######### Versions of libraries/frameworks to be compiled
-QT_VER="6.6.3"
+QT_VER="6.7.1"
 OPENSSL_VER="3.0.13"
-OPENLDAP_VER="2.6.7"
+OPENLDAP_VER="2.6.8"
 REBUILD=false
 BUILD_PATH=~/cmake_builds
-: ${MACOSX_DEPLOYMENT_TARGET:="11.0"}
+: ${MACOSX_DEPLOYMENT_TARGET:="12.0"}
 export MACOSX_DEPLOYMENT_TARGET
 
 while [[ $# -gt 0 ]]
diff --git a/qdigidoc4.wxs b/qdigidoc4.wxs
index 5899f8d8..d7b257d6 100644
--- a/qdigidoc4.wxs
+++ b/qdigidoc4.wxs
@@ -135,7 +135,7 @@
           <File Source="$(var.qt_path)\..\plugins\tls\qopensslbackend$(var.qt_suffix).dll" />
         </Directory>
         <Directory Name="styles">
-          <File Source="$(var.qt_path)\..\plugins\styles\qwindowsvistastyle$(var.qt_suffix).dll" />
+          <File Source="$(var.qt_path)\..\plugins\styles\qmodernwindowsstyle$(var.qt_suffix).dll" />
         </Directory>
         <Directory Name="imageformats">
           <File Source="$(var.qt_path)\..\plugins\imageformats\qsvg$(var.qt_suffix).dll" />