diff --git a/link.magic.unity.sdk/Scripts/Magic.cs b/link.magic.unity.sdk/Scripts/Magic.cs
index ca9ae0c..b3fbfb7 100644
--- a/link.magic.unity.sdk/Scripts/Magic.cs
+++ b/link.magic.unity.sdk/Scripts/Magic.cs
@@ -39,8 +39,6 @@ public Magic(string apikey, CustomNodeConfiguration config, string locale = "en-
     public enum EthNetwork
     {
         Mainnet,
-        Kovan,
-        Rinkeby,
-        Rposten
+        Goerli,
     }
-}
\ No newline at end of file
+}
diff --git a/link.magic.unity.sdk/Scripts/Relayer/UrlBuilder.cs b/link.magic.unity.sdk/Scripts/Relayer/UrlBuilder.cs
index c56458c..f4d34bf 100644
--- a/link.magic.unity.sdk/Scripts/Relayer/UrlBuilder.cs
+++ b/link.magic.unity.sdk/Scripts/Relayer/UrlBuilder.cs
@@ -1,4 +1,5 @@
 using System;
+using JetBrains.Annotations;
 using link.magic.unity.sdk.Utility;
 using UnityEngine;
 
@@ -51,10 +52,10 @@ internal class CustomNodeOptions : BaseOptions
     [Serializable]
     public class CustomNodeConfiguration
     {
-        [SerializeField] internal int chainId;
+        [SerializeField] [CanBeNull] internal int? chainId; 
         [SerializeField] internal string rpcUrl;
 
-        public CustomNodeConfiguration(string rpcUrl, int chainId)
+        public CustomNodeConfiguration(string rpcUrl, int? chainId)
         {
             this.rpcUrl = rpcUrl;
             this.chainId = chainId;
diff --git a/package.json b/package.json
index 8511884..51dcb7a 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "link.magic.unity.sdk",
   "displayName": "Magic Link Unity SDK",
   "description": "The Magic Link Unity SDK provides access to Magic Key Management System and interact with Blockchain.",
-  "version": "0.2.0",
+  "version": "1.1.0",
   "unity": "2021.3",
   "author": {
     "name": "Magic Labs Inc."