diff --git a/.github/workflows/build-qv2ray-qt6.yml b/.github/workflows/build-qv2ray-qt6.yml
index c6c8f8a0..37c63b36 100644
--- a/.github/workflows/build-qv2ray-qt6.yml
+++ b/.github/workflows/build-qv2ray-qt6.yml
@@ -24,7 +24,7 @@ jobs:
     strategy:
       matrix:
         ui_type: [QWidget, QML]
-        platform: [ubuntu-latest, macos-latest, windows-latest]
+        platform: [ubuntu-20.04, macos-latest, windows-latest]
         arch: [x86, x64]
         build_type: [RelWithDebInfo, Release]
         qt_version: [6.0.0]
@@ -36,7 +36,7 @@ jobs:
             arch: x64
             qtarch: win64_msvc2019_64
         exclude:
-          - platform: ubuntu-latest
+          - platform: ubuntu-20.04
             arch: x86
           - platform: macos-latest
             arch: x86
@@ -79,7 +79,7 @@ jobs:
           cached: ${{ steps.cache-qt.outputs.cache-hit }}
       # =========================================================================================================
       - name: Linux - ${{ matrix.qt_version }} - Build preparation - Install Packages
-        if: matrix.platform == 'ubuntu-latest'
+        if: matrix.platform == 'ubuntu-20.04'
         run: |
           sudo add-apt-repository ppa:webispy/grpc
           sudo add-apt-repository ppa:carsten-uppenbrink-net/openssl
@@ -153,7 +153,7 @@ jobs:
           cp -v ./*.pdb ./deployment || true
       # --------------------------------------------------------
       - name: Linux - ${{ matrix.qt_version }} - Generate Dependencies and Build
-        if: matrix.platform == 'ubuntu-latest'
+        if: matrix.platform == 'ubuntu-20.04'
         shell: bash
         env:
           CC: /usr/bin/gcc-7
@@ -171,7 +171,7 @@ jobs:
           cmake --install .
       # ========================================================================================================= Deployments
       - name: Linux - ${{ matrix.qt_version }} - Generating AppImage
-        if: matrix.platform == 'ubuntu-latest'
+        if: matrix.platform == 'ubuntu-20.04'
         run: |
           cd build
           wget https://github.com/probonopd/linuxdeployqt/releases/download/6/linuxdeployqt-6-x86_64.AppImage
@@ -193,14 +193,14 @@ jobs:
           ./linuxdeployqt-6-x86_64.AppImage AppDir/usr/share/applications/qv2ray.desktop -unsupported-allow-new-glibc -appimage -no-strip -always-overwrite -extra-plugins=iconengines,imageformats,platforminputcontexts
           mv ./Qv2ray*.AppImage ./Qv2ray.AppImage
       - name: Linux - ${{ matrix.qt_version }} - Uploading Artifact
-        if: matrix.platform == 'ubuntu-latest'
+        if: matrix.platform == 'ubuntu-20.04'
         uses: actions/upload-artifact@master
         with:
           name: Qv2ray-${{ github.sha }}.linux-${{ matrix.arch }}-${{ matrix.ui_type }}.qt${{ matrix.qt_version }}-${{ matrix.build_type }}.AppImage
           path: build/Qv2ray.AppImage
       - name: Linux - ${{ matrix.qt_version }} - Upload binaries to release
         uses: svenstaro/upload-release-action@v1-release
-        if: github.event_name == 'release' && matrix.platform == 'ubuntu-latest' && matrix.ui_type == 'QWidget' && matrix.qt_version == '5.15.0' && matrix.build_type == 'Release'
+        if: github.event_name == 'release' && matrix.platform == 'ubuntu-20.04' && matrix.ui_type == 'QWidget' && matrix.qt_version == '5.15.0' && matrix.build_type == 'Release'
         with:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: build/Qv2ray.AppImage