diff --git a/.github/workflows/aspnetcore.yml b/.github/workflows/aspnetcore.yml
index 6f60698..1781299 100644
--- a/.github/workflows/aspnetcore.yml
+++ b/.github/workflows/aspnetcore.yml
@@ -12,7 +12,7 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: 3.0
+        dotnet-version: 3.0.100-preview8-013656
     - name: Build with dotnet
       run: dotnet build --configuration Release
     - name: Run tests