diff --git a/.github/workflows/pull_request_changelog.yml b/.github/workflows/pull_request_changelog.yml
index 995f5d6c..49a15123 100644
--- a/.github/workflows/pull_request_changelog.yml
+++ b/.github/workflows/pull_request_changelog.yml
@@ -12,7 +12,11 @@ jobs:
     runs-on: ubuntu-latest
     name: "Check that changes is described"
     steps:
-      - uses: actions/checkout@master
+      - name: "Checkout code"
+        uses: actions/checkout@master
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+          fetch-depth: '0'
       - name: Set up Python 3.10
         uses: actions/setup-python@v2
         with: