diff --git a/action.yml b/action.yml
index fccd7be..8b44de1 100644
--- a/action.yml
+++ b/action.yml
@@ -21,6 +21,9 @@ runs:
   using: "composite"
   steps:
     - uses: actions/checkout@v5
+      with:
+        fetch-depth: 0  # required to see all branches
+
 
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v2