diff --git a/.github/workflows/docker.build.yml b/.github/workflows/docker.build.yml
index a8517c5..01410e5 100644
--- a/.github/workflows/docker.build.yml
+++ b/.github/workflows/docker.build.yml
@@ -6,6 +6,10 @@ on:
       - 'main'
   pull_request:
 
+permissions:
+  contents: read
+  packages: write
+
 jobs:
   docker-build:
     runs-on: ubuntu-latest
@@ -51,7 +55,7 @@ jobs:
           platforms: linux/amd64
           cache-from: type=local,src=/tmp/.buildx-cache
           cache-to: type=local,mode=max,dest=/tmp/.buildx-cache
-          push: true
+          push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.docker_meta.outputs.tags }}
           labels: ${{ steps.docker_meta.outputs.labels }}
       -