diff --git a/.github/workflows/build-release.yml b/.github/workflows/build-release.yml
index f452401..13183a1 100644
--- a/.github/workflows/build-release.yml
+++ b/.github/workflows/build-release.yml
@@ -34,10 +34,6 @@ jobs:
         with:
           ref: ${{ needs.update-packagejson.outputs.sha }}
       - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
-        with:
-          dotnet-version: |
-            3.1.x
-            6.0.x
       # build and pack
       - run: dotnet build -c Release -p:Version=${{ env.GIT_TAG }}
       - run: dotnet test -c Release --no-build