diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index d731a44..f574ef5 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -17,6 +17,12 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v2.7.0
       
+    - name: Checkout submodules
+      # You may pin to the exact commit or the version.
+      # uses: textbook/git-checkout-submodule-action@0cb23c7e6a67085e1dc5e884920bd620f7b9c469
+      uses: textbook/git-checkout-submodule-action@2.1.1
+
+      
     - name: Publish Docker Image to GitHub Registry
       # You may pin to the exact commit or the version.
       # uses: TilBlechschmidt/gp-docker-action@f89287d44556dd7d24f76c799cd0795eeb352bcf