diff --git a/.github/workflows/prerelease.yml b/.github/workflows/prerelease.yml
index 36fc747..97aa690 100644
--- a/.github/workflows/prerelease.yml
+++ b/.github/workflows/prerelease.yml
@@ -40,7 +40,7 @@ jobs:
           make build-static-ci
 
       - name: publish
-        uses: elgohr/Publish-Docker-Github-Action@master
+        uses: elgohr/Publish-Docker-Github-Action@eb53b3ec07136a6ebaed78d8135806da64f7c7e2 # v5
         with:
           name: target/vela-email
           cache: true