diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index e7425e91147d8..aba7299455366 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -66,10 +66,13 @@ jobs:
           remove-dotnet: 'true'
           remove-android: 'true'
           remove-haskell: 'true'
+      - name: 'PR commits + 1'
+        run: echo "PR_FETCH_DEPTH=$(( ${{ github.event.pull_request.commits }} + 1 ))" >> "${GITHUB_ENV}"
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
-          fetch-depth: 0
+          ref: ${{ github.event.pull_request.head.sha }}
+          fetch-depth: ${{ env.PR_FETCH_DEPTH }}
       - name: 'Check Changed files'
         id: changed-files-cpp
         uses: tj-actions/changed-files@v41