diff --git a/.github/workflows/WebAPI.yml b/.github/workflows/WebAPI.yml
index e7248f3..26d7ded 100644
--- a/.github/workflows/WebAPI.yml
+++ b/.github/workflows/WebAPI.yml
@@ -17,7 +17,7 @@ jobs:
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 8.0.x
+        dotnet-version: 6.0.x
     - name: current directory
       run: pwd
     - name: Gen cert for dev