diff --git a/.github/workflows/Build.yml b/.github/workflows/Build.yml
index b2e4304..9c97a47 100644
--- a/.github/workflows/Build.yml
+++ b/.github/workflows/Build.yml
@@ -37,7 +37,7 @@ jobs:
         run: |
           cd Software/PC_Application/LibreVNA-GUI
           export QT_SELECT=qt6
-          qmake LibreVNA-GUI.pro
+          qmake6 LibreVNA-GUI.pro
           make -j9
         shell: bash
 
@@ -96,7 +96,7 @@ jobs:
       - name: Install Qt
         uses: jurplel/install-qt-action@v4
         with:
-          version: '6.8.3'
+          version: '6.8.0'
           arch: 'win64_mingw'
       
       - name: Download libusb
diff --git a/.github/workflows/Release_tag_stable.yml b/.github/workflows/Release_tag_stable.yml
index 2f26cd9..51c004d 100644
--- a/.github/workflows/Release_tag_stable.yml
+++ b/.github/workflows/Release_tag_stable.yml
@@ -32,7 +32,7 @@ jobs:
         run: |
           cd Software/PC_Application/LibreVNA-GUI
           export QT_SELECT=qt6
-          qmake LibreVNA-GUI.pro
+          qmake6 LibreVNA-GUI.pro
           make -j9
           zip LibreVNA-GUI.zip LibreVNA-GUI
         shell: bash
@@ -111,7 +111,7 @@ jobs:
       - name: Install Qt
         uses: jurplel/install-qt-action@v4
         with:
-          version: '6.8.3'
+          version: '6.8.0'
           arch: 'win64_mingw'
       
       - name: Download libusb