diff --git a/src/Managing.Api/Controllers/BotController.cs b/src/Managing.Api/Controllers/BotController.cs
index c08628ab..181d7a23 100644
--- a/src/Managing.Api/Controllers/BotController.cs
+++ b/src/Managing.Api/Controllers/BotController.cs
@@ -87,7 +87,7 @@ public class BotController : BaseController
                 return false;
 
             // Admin users can access all bots
-            if (_adminService.IsUserAdmin(user.Name))
+            if (await _adminService.IsUserAdminAsync(user.Name))
                 return true;
 
             if (identifier != default)
diff --git a/src/Managing.Api/Controllers/SqlMonitoringController.cs b/src/Managing.Api/Controllers/SqlMonitoringController.cs
index d5756e3d..193599c8 100644
--- a/src/Managing.Api/Controllers/SqlMonitoringController.cs
+++ b/src/Managing.Api/Controllers/SqlMonitoringController.cs
@@ -46,7 +46,7 @@ public class SqlMonitoringController : BaseController
             if (user == null)
                 return false;
 
-            return _adminService.IsUserAdmin(user.Name);
+            return await _adminService.IsUserAdminAsync(user.Name);
         }
         catch (Exception ex)
         {
diff --git a/src/Managing.Api/Controllers/TradingController.cs b/src/Managing.Api/Controllers/TradingController.cs
index 95a3ee17..c7512330 100644
--- a/src/Managing.Api/Controllers/TradingController.cs
+++ b/src/Managing.Api/Controllers/TradingController.cs
@@ -220,7 +220,7 @@ public class TradingController : BaseController
     private async Task<bool> CanUserInitializeAddress(string userName, string publicAddress)
     {
         // Admin users can initialize any address
-        if (_adminService.IsUserAdmin(userName))
+        if (await _adminService.IsUserAdminAsync(userName))
         {
             _logger.LogInformation("Admin user {UserName} initializing address {Address}", userName, publicAddress);
             return true;
diff --git a/src/Managing.Api/Controllers/WhitelistController.cs b/src/Managing.Api/Controllers/WhitelistController.cs
index ad4b23e1..3631993c 100644
--- a/src/Managing.Api/Controllers/WhitelistController.cs
+++ b/src/Managing.Api/Controllers/WhitelistController.cs
@@ -49,10 +49,10 @@ public class WhitelistController : BaseController
     {
         var user = await GetUser();
         
-        if (!_adminService.IsUserAdmin(user.Name))
+        if (!await _adminService.IsUserAdminAsync(user.Name))
         {
             _logger.LogWarning("User {UserName} attempted to list whitelist accounts without admin privileges", user.Name);
-            return Forbid("Only admin users can list whitelist accounts");
+            return StatusCode(403, new { error = "Only admin users can list whitelist accounts" });
         }
 
         try
@@ -89,10 +89,10 @@ public class WhitelistController : BaseController
     {
         var user = await GetUser();
         
-        if (!_adminService.IsUserAdmin(user.Name))
+        if (!await _adminService.IsUserAdminAsync(user.Name))
         {
             _logger.LogWarning("User {UserName} attempted to set whitelisted status without admin privileges", user.Name);
-            return Forbid("Only admin users can set whitelisted status");
+            return StatusCode(403, new { error = "Only admin users can set whitelisted status" });
         }
 
         try
diff --git a/src/Managing.Application/Shared/AdminConfigurationService.cs b/src/Managing.Application/Shared/AdminConfigurationService.cs
index b850ec14..8e678634 100644
--- a/src/Managing.Application/Shared/AdminConfigurationService.cs
+++ b/src/Managing.Application/Shared/AdminConfigurationService.cs
@@ -7,7 +7,7 @@ namespace Managing.Application.Shared;
 
 public interface IAdminConfigurationService
 {
-    bool IsUserAdmin(string userName);
+    Task<bool> IsUserAdminAsync(string userName);
     List<string> GetAdminUserNames();
 }
 
@@ -27,7 +27,7 @@ public class AdminConfigurationService : IAdminConfigurationService
         _serviceScopeFactory = serviceScopeFactory;
     }
 
-    public bool IsUserAdmin(string userName)
+    public async Task<bool> IsUserAdminAsync(string userName)
     {
         if (string.IsNullOrEmpty(userName))
         {
@@ -50,7 +50,7 @@ public class AdminConfigurationService : IAdminConfigurationService
             using var scope = _serviceScopeFactory.CreateScope();
             var userRepository = scope.ServiceProvider.GetRequiredService<IUserRepository>();
             
-            var user = userRepository.GetUserByNameAsync(userName).GetAwaiter().GetResult();
+            var user = await userRepository.GetUserByNameAsync(userName);
             
             if (user != null && user.IsAdmin)
             {