diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 46364ba..f28b888 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -31,6 +31,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2