diff --git a/Editor/Misc/EventScriptingDefineSymbols.cs b/Editor/Misc/EventScriptingDefineSymbols.cs
index 9de3265..a4b9878 100644
--- a/Editor/Misc/EventScriptingDefineSymbols.cs
+++ b/Editor/Misc/EventScriptingDefineSymbols.cs
@@ -6,7 +6,7 @@ namespace AlicizaX.Editor
 {
     internal static class EventScriptingDefineSymbols
     {
-        private const string MenuPath = "Tools/AlicizaX/Enable Strict Check";
+        private const string MenuPath = "Tools/AlicizaX/Enable Event Strict Check";
         private const string DefineSymbol = "Event_StrictCheck";
 
         [MenuItem(MenuPath)]
diff --git a/Runtime/AlicizaX.Runtime.asmdef b/Runtime/AlicizaX.Runtime.asmdef
index e4dc82d..1916c24 100644
--- a/Runtime/AlicizaX.Runtime.asmdef
+++ b/Runtime/AlicizaX.Runtime.asmdef
@@ -17,6 +17,11 @@
             "name": "com.alicizax.unity.cysharp.zstring",
             "expression": "2.3.0",
             "define": "ZSTRING_SUPPORT"
+        },
+        {
+            "name": "com.alicizax.unity.cysharp.unitask",
+            "expression": "",
+            "define": "UNITASK_SUPPORT"
         }
     ],
     "noEngineReferences": false
diff --git a/Runtime/Utility/Utility.Http.cs b/Runtime/Utility/Utility.Http.cs
index 28fe650..ba9d68b 100644
--- a/Runtime/Utility/Utility.Http.cs
+++ b/Runtime/Utility/Utility.Http.cs
@@ -1,4 +1,6 @@
-using System.Collections.Generic;
+#if UNITASK_SUPPORT
+using System.Collections.Generic;
+using System.Text;
 using Cysharp.Threading.Tasks;
 using UnityEngine;
 using UnityEngine.Networking;
@@ -23,7 +25,7 @@ namespace AlicizaX
             /// </summary>
             public static async UniTask<string> PostJson(string url, object jsonData, float timeout = 5f)
             {
-                var json = Utility.Json.ToJson(jsonData);
+                var json = Json.ToJson(jsonData);
                 using var request = CreateJsonPostRequest(url, json);
                 return await SendRequest(request);
             }
@@ -50,7 +52,7 @@ namespace AlicizaX
             private static UnityWebRequest CreateJsonPostRequest(string url, string json)
             {
                 var request = new UnityWebRequest(url, "POST");
-                byte[] jsonBytes = System.Text.Encoding.UTF8.GetBytes(json);
+                byte[] jsonBytes = Encoding.UTF8.GetBytes(json);
                 request.uploadHandler = new UploadHandlerRaw(jsonBytes);
                 request.downloadHandler = new DownloadHandlerBuffer();
                 request.SetRequestHeader("Content-Type", "application/json");
@@ -102,3 +104,5 @@ namespace AlicizaX
         }
     }
 }
+
+#endif