diff --git a/CHANGELOG.md b/CHANGELOG.md
index bbe4e9f9..791e950b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,8 @@
 # Changelog
+## [1.3.13] - 2023-11-22
+### Bug Fixes
+- Removed UnsupportedChainId error and now can add custom network details
+
 ## [1.3.12] - 2023-11-17
 ### New
 - Added Klaytn mainnet and Testnet (Baobab)
diff --git a/package-lock.json b/package-lock.json
index 27c0165e..d9c02e79 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@etherspot/prime-sdk",
-  "version": "1.3.12",
+  "version": "1.3.13",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@etherspot/prime-sdk",
-      "version": "1.3.12",
+      "version": "1.3.13",
       "license": "MIT",
       "dependencies": {
         "@apollo/client": "3.8.6",
diff --git a/package.json b/package.json
index 0767d67a..5be55e01 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@etherspot/prime-sdk",
-  "version": "1.3.12",
+  "version": "1.3.13",
   "description": "Etherspot Prime (Account Abstraction) SDK",
   "keywords": [
     "ether",
diff --git a/src/sdk/network/network.service.ts b/src/sdk/network/network.service.ts
index c5819372..757f99eb 100644
--- a/src/sdk/network/network.service.ts
+++ b/src/sdk/network/network.service.ts
@@ -34,7 +34,7 @@ export class NetworkService extends Service {
       : this.supportedNetworks[0];
 
     if (!this.defaultNetwork) {
-      throw new Exception('Unsupported network');
+      this.defaultNetwork = this.supportedNetworks.find(({ chainId }) => chainId === 1)
     }
 
     this.chainId$ = this.network$.observeKey('chainId');
@@ -56,10 +56,6 @@ export class NetworkService extends Service {
     this.network$.next(this.supportedNetworks.find(({ name }) => name === networkName) || null);
   }
 
-  // isNetworkNameSupported(networkName: string): boolean {
-  //   return !!this.supportedNetworks.find(({ name }) => name === networkName);
-  // }
-
   isNetworkSupported(chainId: number): boolean {
     return SupportedNetworks.includes(chainId);
   }