diff --git a/package.json b/package.json
index 76993927..445a77db 100644
--- a/package.json
+++ b/package.json
@@ -59,6 +59,7 @@
     "bech32": "^2.0.0",
     "bignumber.js": "^9.1.2",
     "bitwise": "^2.2.1",
+    "bn.js": "^5.2.1",
     "borc": "^3.0.0",
     "bs58check": "^4.0.0",
     "buffer": "^6.0.3",
@@ -71,6 +72,7 @@
   },
   "devDependencies": {
     "@chainsafe/bls-keystore": "^3.1.0",
+    "@eslint/js": "^9.13.0",
     "@noble/bls12-381": "^1.4.0",
     "@solana/web3.js": "^1.95.4",
     "@terra-money/terra.js": "^3.1.10",
@@ -79,7 +81,6 @@
     "@types/node": "^22.7.8",
     "@types/readline-sync": "^1.4.8",
     "@types/seedrandom": "^3.0.8",
-    "@eslint/js": "^9.13.0",
     "@typescript-eslint/eslint-plugin": "^8.11.0",
     "@typescript-eslint/parser": "^8.11.0",
     "acorn": ">=8.13.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index a85bf357..1ffd574b 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -40,6 +40,9 @@ dependencies:
   bitwise:
     specifier: ^2.2.1
     version: 2.2.1
+  bn.js:
+    specifier: ^5.2.1
+    version: 5.2.1
   borc:
     specifier: ^3.0.0
     version: 3.0.0
diff --git a/vite.config.ts b/vite.config.ts
index 31d39adc..d8701c86 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -17,6 +17,7 @@ export default defineConfig({
         '@ethereumjs/tx',
         '@ethersproject/abi',
         '@metamask/eth-sig-util',
+        'bn.js',
       ],
       output: {
         globals: {
@@ -25,6 +26,7 @@ export default defineConfig({
           '@ethereumjs/tx': 'EthereumjsTx',
           '@ethersproject/abi': 'EthersprojectAbi',
           '@metamask/eth-sig-util': 'MetamaskEthSigUtil',
+          'bn.js': 'BN',
         },
       },
     },