diff --git a/.forgejo/workflows/docker-build.yml b/.forgejo/workflows/docker-build.yml
index 2803409..0638fd7 100644
--- a/.forgejo/workflows/docker-build.yml
+++ b/.forgejo/workflows/docker-build.yml
@@ -16,6 +16,9 @@ jobs:
       - name: Show commit and Dockerfile
         run: git log --oneline -1 && echo "---" && head -35 Dockerfile
 
+      - name: Clear Docker build cache
+        run: docker builder prune -af
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3