diff --git a/action.yml b/action.yml
index e7a698a..d5eea25 100644
--- a/action.yml
+++ b/action.yml
@@ -47,6 +47,8 @@ runs:
   steps:
     - name: Checkout Repository
       uses: actions/checkout@v2
+      with:
+        submodules: 'recursive'
 
     - name: Setup .NET Core 3.1
       uses: actions/setup-dotnet@master