diff --git a/Library/Solutions/Activity.cs b/Library/Solutions/Activity.cs
index 5ab0048..a946cae 100644
--- a/Library/Solutions/Activity.cs
+++ b/Library/Solutions/Activity.cs
@@ -3,21 +3,6 @@ using Milimoe.FunGame.Core.Library.Constant;
 
 namespace Milimoe.FunGame.Testing.Solutions
 {
-    public enum ActivityState
-    {
-        Future,
-        Upcoming,
-        InProgress,
-        Ended
-    }
-    
-    public enum RedeemResult
-    {
-        Success,
-        StockNotEnough,
-        PointsNotEnough
-    }
-
     public class Activity(long id, string name, DateTime startTime, DateTime endTime)
     {
         public long Id { get; set; } = id;
diff --git a/Library/Tests/WebSocketTest.cs b/Library/Tests/WebSocketTest.cs
index 94954ef..d91acd9 100644
--- a/Library/Tests/WebSocketTest.cs
+++ b/Library/Tests/WebSocketTest.cs
@@ -5,7 +5,7 @@ using Milimoe.FunGame.Core.Controller;
 using Milimoe.FunGame.Core.Entity;
 using Milimoe.FunGame.Core.Library.Common.Network;
 using Milimoe.FunGame.Core.Library.Constant;
-using Oshima.FunGame.OshimaModules;
+using Oshima.Core.Constant;
 
 namespace Milimoe.FunGame.Testing.Tests
 {