diff --git a/package.json b/package.json
index 43a50c9..a9dd732 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@orionprotocol/sdk",
-  "version": "0.18.27",
+  "version": "0.18.28",
   "description": "Orion Protocol SDK",
   "main": "./lib/index.cjs",
   "module": "./lib/index.js",
diff --git a/src/constants/networkCodes.ts b/src/constants/networkCodes.ts
index 4f8b514..8866e18 100644
--- a/src/constants/networkCodes.ts
+++ b/src/constants/networkCodes.ts
@@ -1 +1 @@
-export default ['ftm', 'bsc', 'eth', 'polygon', 'okc'] as const;
+export default ['ftm', 'bsc', 'eth', 'polygon', 'okc', 'arb'] as const;
diff --git a/src/constants/uppercasedNetworkCodes.ts b/src/constants/uppercasedNetworkCodes.ts
index 12df5b2..8dc00e3 100644
--- a/src/constants/uppercasedNetworkCodes.ts
+++ b/src/constants/uppercasedNetworkCodes.ts
@@ -1 +1 @@
-export default ['FTM', 'BSC', 'ETH', 'POLYGON', 'OKC'] as const;
+export default ['FTM', 'BSC', 'ETH', 'POLYGON', 'OKC', 'ARB'] as const;