diff --git a/src/Discussion.Web/Services/Identity/RepositoryUserStore.cs b/src/Discussion.Web/Services/Identity/RepositoryUserStore.cs
index 9f065473..09ba0e82 100644
--- a/src/Discussion.Web/Services/Identity/RepositoryUserStore.cs
+++ b/src/Discussion.Web/Services/Identity/RepositoryUserStore.cs
@@ -71,7 +71,7 @@ public Task<User> FindByIdAsync(string userId, CancellationToken cancellationTok
 
         public Task<User> FindByNameAsync(string normalizedUserName, CancellationToken cancellationToken)
         {
-            var user = _useRepository.All().FirstOrDefault(u => string.Equals(u.UserName, normalizedUserName, StringComparison.InvariantCultureIgnoreCase));
+            var user = _useRepository.All().FirstOrDefault(u => u.UserName.ToUpper() == normalizedUserName.ToUpper());
             return Task.FromResult(user);
         }
 
diff --git a/test/Discussion.Web.Tests/Utils/TestApplication.cs b/test/Discussion.Web.Tests/Utils/TestApplication.cs
index 461c8b52..3e269508 100644
--- a/test/Discussion.Web.Tests/Utils/TestApplication.cs
+++ b/test/Discussion.Web.Tests/Utils/TestApplication.cs
@@ -26,7 +26,7 @@ internal TestApplication(bool initlizeApp)
         {
             if (initlizeApp)
             {
-                BuildApplication(this, "Development");
+                BuildApplication(this, "UnitTest");
                 // BuildApplication(this);
             }