diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 42b7f4771..385e84e77 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -185,7 +185,7 @@ jobs:
       - name: "Checkout"
         uses: "actions/checkout@v2"
         with:
-          ref: ${{ github.ref }}
+          fetch-depth: 50
 
       - name: "Install PHP with coverage"
         uses: "shivammathur/setup-php@v2"