diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 7f2dc99..8f08d6d 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -19,6 +19,7 @@ jobs:
       id: buildx
       uses: docker/setup-buildx-action@v1
     - name: Login to DockerHub
+      if: ${{ github.ref == 'refs/heads/main' }}
       uses: docker/login-action@v1
       with:
         username: ${{ secrets.DOCKERHUB_USERNAME }}