diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7221376..28ed788 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,6 +9,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
       - uses: actions/setup-java@v1
         with:
           java-version: 11