diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 672c516a4..5dd1b2e03 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -31,7 +31,7 @@ jobs:
             experimental: true        
         
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2.3.1
     - name: Set up JDK ${{ matrix.java }}
       uses: actions/setup-java@v1
       with: