diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index a73cc8b..3ce930f 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Setup .NET
       uses: actions/setup-dotnet@v1
       with: