diff --git a/.github/workflows/docker-master.yaml b/.github/workflows/docker-master.yaml
index ce1409b0c..4504bdee0 100644
--- a/.github/workflows/docker-master.yaml
+++ b/.github/workflows/docker-master.yaml
@@ -73,9 +73,9 @@ jobs:
           token: ${{ secrets.APPARITOR_GITHUB_TOKEN }}
 
       - name: Bump test environment
-        uses: mikefarah/yq@3.4.1
+        uses: mikefarah/yq@4.2.1
         with:
-          cmd: "yq write -i environments/internal-prd/values/pomerium-demo.yaml image.tag ${{ needs.publish.outputs.sha-tag }}"
+          cmd: yq eval '.image.tag = "${{ needs.publish.outputs.sha-tag }}"' -i environments/internal-prd/values/pomerium-demo.yaml
 
       - name: Commit changes
         uses: stefanzweifel/git-auto-commit-action@v4