diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index 5eb6953..853ea7d 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -60,7 +60,7 @@ jobs:
 
       - name: Generate artifact attestation
         if: github.event_name != 'pull_request'
-        uses: actions/attest-build-provenance@v1
+        uses: actions/attest-build-provenance@ef244123eb79f2f7a7e75d99086184180e6d0018 # v1.4.4
         with:
           subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           subject-digest: ${{ steps.build.outputs.digest }}