diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 9f81e9a..a0b178e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -25,6 +25,7 @@ jobs:
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     steps:
+      - uses: actions/checkout@v4
       - name: Set up JDK
         uses: actions/setup-java@v4
         with: