diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 57f8cc1..23baca1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,6 +5,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+        with:
+          fetch-depth: 20
+      - name: Fetch base_ref HEAD to use it as Ancestor hash in LHCI
+        run: git fetch --depth=1 origin +refs/heads/$:refs/remotes/origin/$
       - uses: pnpm/action-setup@v2
         with:
           version: 8