diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 2120e957b..32d0d64a9 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -71,6 +71,7 @@ jobs:
             image: qe
             architecture: arm64
             runsOn: ARM64
+        if: ${{ !github.event.pull_request.head.repo.fork }}
 
     amd64-push-ghcr:
         uses: ./.github/workflows/docker-push.yml
@@ -82,6 +83,7 @@ jobs:
             REGISTRY_USERNAME: ${{ github.actor }}
             REGISTRY_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         needs: [amd64]
+        if: ${{ !github.event.pull_request.head.repo.fork }}
 
     arm64-push-ghcr:
         uses: ./.github/workflows/docker-push.yml
@@ -93,6 +95,7 @@ jobs:
             REGISTRY_USERNAME: ${{ github.actor }}
             REGISTRY_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         needs: [arm64]
+        if: ${{ !github.event.pull_request.head.repo.fork }}
 
     merge-tags-ghcr:
         uses: ./.github/workflows/docker-merge-tags.yml
@@ -103,6 +106,7 @@ jobs:
             REGISTRY_USERNAME: ${{ github.actor }}
             REGISTRY_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         needs: [amd64-push-ghcr, arm64-push-ghcr]
+        if: ${{ !github.event.pull_request.head.repo.fork }}
 
     amd64-push-dockerhub:
         if: github.repository == 'aiidalab/aiidalab-qe' && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v'))