diff --git a/dotnet/tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.IntegrationTests/SessionPersistenceTests.cs b/dotnet/tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.IntegrationTests/SessionPersistenceTests.cs
index 785a3b2e00..33b842bf34 100644
--- a/dotnet/tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.IntegrationTests/SessionPersistenceTests.cs
+++ b/dotnet/tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.IntegrationTests/SessionPersistenceTests.cs
@@ -102,7 +102,7 @@ public sealed class SessionPersistenceTests : IAsyncDisposable
 
         // Register agent using hosting DI pattern with InMemorySessionStore
         builder.Services.AddAIAgent("session-test-agent", (_, name) => new FakeSessionAgent(name))
-            .WithInMemorySessionStore();
+            .WithInMemorySessionStore(withIsolation: false);
 
         this._app = builder.Build();