diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5b90a66..5e4255b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change Log
 
+## 4.0.1 (Nov 4, 2024)
+### Features
+- Fixed an issue where build failed on the Windows platform
+
 ## 4.0.0 (Sep 25, 2024)
 ### Features
 - Added support for WebGL
diff --git a/Runtime/Scripts/UnityPlatform/JsWebSocket/JsNativeWebSocketBridge.cs b/Runtime/Scripts/UnityPlatform/JsWebSocket/JsNativeWebSocketBridge.cs
index 77d1e02..4d0e403 100644
--- a/Runtime/Scripts/UnityPlatform/JsWebSocket/JsNativeWebSocketBridge.cs
+++ b/Runtime/Scripts/UnityPlatform/JsWebSocket/JsNativeWebSocketBridge.cs
@@ -1,3 +1,4 @@
+#if UNITY_WEBGL && !UNITY_EDITOR
 using System.Collections.Generic;
 using System.Runtime.InteropServices;
 
@@ -122,4 +123,6 @@ internal static void Close(int inClientId)
             CloseByNative(inClientId);
         }
     }
-}
\ No newline at end of file
+}
+
+#endif //#if UNITY_WEBGL && !UNITY_EDITOR
\ No newline at end of file
diff --git a/Runtime/Scripts/UnityPlatform/JsWebSocket/JsWebSocket.cs b/Runtime/Scripts/UnityPlatform/JsWebSocket/JsWebSocket.cs
index 3de3d7e..7fcebf5 100644
--- a/Runtime/Scripts/UnityPlatform/JsWebSocket/JsWebSocket.cs
+++ b/Runtime/Scripts/UnityPlatform/JsWebSocket/JsWebSocket.cs
@@ -1,3 +1,4 @@
+#if UNITY_WEBGL && !UNITY_EDITOR
 using System;
 using System.Net;
 
@@ -154,4 +155,6 @@ internal void OnWebSocketClosed()
             }
         }
     }
-}
\ No newline at end of file
+}
+
+#endif // #if UNITY_WEBGL && !UNITY_EDITOR
\ No newline at end of file
diff --git a/Runtime/Scripts/UnityPlatform/JsWebSocket/JsWebSocketStateType.cs b/Runtime/Scripts/UnityPlatform/JsWebSocket/JsWebSocketStateType.cs
index 7e2eac4..99d469e 100644
--- a/Runtime/Scripts/UnityPlatform/JsWebSocket/JsWebSocketStateType.cs
+++ b/Runtime/Scripts/UnityPlatform/JsWebSocket/JsWebSocketStateType.cs
@@ -1,7 +1,4 @@
-// 
-//  Copyright (c) 2022 Sendbird, Inc.
-// 
-
+#if UNITY_WEBGL && !UNITY_EDITOR
 namespace Sendbird.Chat
 {
     internal enum JsWebSocketStateType
@@ -13,3 +10,5 @@ internal enum JsWebSocketStateType
         Closed,
     }
 }
+
+#endif //#if UNITY_WEBGL && !UNITY_EDITOR
\ No newline at end of file
diff --git a/Runtime/Scripts/UnityPlatform/UnityPlatformApplication.cs b/Runtime/Scripts/UnityPlatform/UnityPlatformApplication.cs
index 25da306..47de8e0 100644
--- a/Runtime/Scripts/UnityPlatform/UnityPlatformApplication.cs
+++ b/Runtime/Scripts/UnityPlatform/UnityPlatformApplication.cs
@@ -9,7 +9,7 @@ namespace Sendbird.Chat
 {
     internal class UnityPlatformApplication : IPlatformApplication
     {
-        string IPlatformApplication.SdkVersion => "4.0.0";
+        string IPlatformApplication.SdkVersion => "4.0.1";
         string IPlatformApplication.PlatformName => "Unity";
         string IPlatformApplication.PlatformVersion => Application.unityVersion;
         string IPlatformApplication.OsName => Application.platform.ToString();
diff --git a/package.json b/package.json
index dec4c93..e10fcff 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "com.sendbird.chat",
   "displayName": "SendbirdChat",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "documentationUrl": "https://github.com/sendbird/sendbird-chat-sdk-unity",
   "changelogUrl": "https://github.com/sendbird/sendbird-chat-sdk-unity/blob/master/CHANGELOG.md",
   "licensesUrl": "https://github.com/sendbird/sendbird-chat-sdk-unity/blob/master/LICENSE.md",