diff --git a/.github/workflows/release-appimage.yml b/.github/workflows/release-appimage.yml
index ce9e2b1..21f31bf 100644
--- a/.github/workflows/release-appimage.yml
+++ b/.github/workflows/release-appimage.yml
@@ -14,15 +14,21 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
         with:
-          submodules: true
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: Initialize submodules
+        run: git submodule update --init --recursive
 
       - name: Build AppImage
         run: |
-          docker compose -f packaging/docker-compose.appimage.yml up --build
+          docker compose -f packaging/docker-compose.appimage.yml run --rm --build jctoolkit-appimage
 
       - name: Create draft release and upload AppImage
         env:
           GH_TOKEN: ${{ github.token }}
         run: |
+          APPIMAGE="${{ github.workspace }}/dist/JCToolKit-x86_64.AppImage"
+          test -f "$APPIMAGE" || { echo "AppImage not found at $APPIMAGE"; ls -la dist/ 2>/dev/null || true; exit 1; }
           gh release create "${{ github.event.inputs.tag }}" --draft --title "${{ github.event.inputs.tag }}" || true
-          gh release upload "${{ github.event.inputs.tag }}" dist/JCToolKit-x86_64.AppImage --clobber
+          gh release upload "${{ github.event.inputs.tag }}" "$APPIMAGE" --clobber