diff --git a/.github/workflows/dotnet-check-build.yml b/.github/workflows/dotnet-check-build.yml
index 015b63f..893d45e 100644
--- a/.github/workflows/dotnet-check-build.yml
+++ b/.github/workflows/dotnet-check-build.yml
@@ -1,5 +1,7 @@
 name: dotnet-check-build
 run-name: Check .NET Build by ${{ github.actor }}
+permissions:
+  contents: read
 
 on:
   pull_request: