diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6b5d190..2420a12 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,4 +18,8 @@ jobs:
       - name: Build
         run: dotnet build MrGameEng.sln --configuration Release
       - name: Test
+        # Тестхост собран под net8.0, а на раннере стоит только рантайм .NET 10
+        # (SDK 10). Roll-forward пускает net8.0-тестхост на рантайме 10.0.
+        env:
+          DOTNET_ROLL_FORWARD: Major
         run: dotnet test MrGameEng.sln --configuration Release --no-build --verbosity normal