diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b83259b4b..c2966abe7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -468,7 +468,8 @@ jobs:
         shell: bash
         run: |
           cmake --install ${{ env.BUILD_DIR }} --prefix ${{ env.INSTALL_APPIMAGE_DIR }}/usr
-
+          mv ${{ env.INSTALL_APPIMAGE_DIR }}/usr/share/metainfo/org.prismlauncher.PrismLauncher.metainfo.xml ${{ env.INSTALL_APPIMAGE_DIR }}/usr/share/metainfo/org.prismlauncher.PrismLauncher.appdata.xml
+          export "NO_APPSTREAM=1" # we have to skip appstream checking because appstream on ubuntu 20.04 is outdated
           export OUTPUT="PrismLauncher-${{ runner.os }}-${{ env.VERSION }}-${{ inputs.build_type }}-x86_64.AppImage"
 
           chmod +x linuxdeploy-*.AppImage