diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1fd7162bc..13b6e73b5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -41,7 +41,7 @@ jobs:
     - name: Checkout code
       uses: actions/checkout@v1
     - name: Setup dotnet
-      uses: actions/setup-dotnet@v4
+      uses: actions/setup-dotnet@baa11fbfe1d6520db94683bd5c7a3818018e4309 # v5
       with:
         dotnet-version: '9.0.x'
     - name: .NET Build