diff --git a/.github/workflows/dockerhub-mcp.yml b/.github/workflows/dockerhub-mcp.yml
index 2b160225c..204da8b2f 100644
--- a/.github/workflows/dockerhub-mcp.yml
+++ b/.github/workflows/dockerhub-mcp.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
         with:
-          buildkitd-flags: --root /tmp/buildkit
+          buildkitd-flags: --root /tmp/buildkit --oci-worker-gc --oci-worker-gc-keepstorage=8GB
 
       - name: Log in to Docker Hub
         uses: docker/login-action@v3