diff --git a/contracts/hardhat.config.ts b/contracts/hardhat.config.ts
index e9fcb6931..470029275 100644
--- a/contracts/hardhat.config.ts
+++ b/contracts/hardhat.config.ts
@@ -39,7 +39,7 @@ export default {
       url: 'http://127.0.0.1:8555',
       gasLimit: GAS_LIMIT,
     } as any,
-    goerli: {
+    sepolia: {
       url: process.env.JSONRPC_HTTP_URL || 'http://127.0.0.1:8545',
       accounts,
     },
@@ -67,10 +67,6 @@ export default {
       url: process.env.JSONRPC_HTTP_URL || 'https://sepolia.optimism.io',
       accounts,
     },
-    sepolia: {
-      url: process.env.JSONRPC_HTTP_URL || 'http://127.0.0.1:8545',
-      accounts,
-    },
     'mantle-testnet': {
       url: process.env.JSONRPC_HTTP_URL || 'https://rpc.testnet.mantle.xyz',
       accounts,
@@ -89,6 +85,7 @@ export default {
         process.env.OPTIMISMSCAN_API_KEY || 'YOUR_OPTIMISMSCAN_API_KEY',
       'optimism-sepolia':
         process.env.OPTIMISMSCAN_API_KEY || 'YOUR_OPTIMISMSCAN_API_KEY',
+      sepolia: process.env.ETHERSCAN_API_KEY || 'YOUR_ETHERSCAN_API_KEY',
     },
     customChains: [
       {
diff --git a/vue-app/src/utils/chains.ts b/vue-app/src/utils/chains.ts
index b84942d8b..acab4ecfe 100644
--- a/vue-app/src/utils/chains.ts
+++ b/vue-app/src/utils/chains.ts
@@ -1,6 +1,6 @@
 export enum ChainId {
   MAINNET = 1,
-  GOERLI = 5,
+  SEPOLIA = 11155111,
   HARDHAT = 31337,
   ARBITRUM_ONE = 42161,
   ARBITRUM_RINKEBY = 421611,
@@ -36,12 +36,12 @@ export const CHAIN_INFO: ChainInfo = {
     explorerLogo: 'etherscan.svg',
     explorerLabel: 'Etherscan',
   },
-  [ChainId.GOERLI]: {
-    label: 'Goerli',
+  [ChainId.SEPOLIA]: {
+    label: 'Sepolia',
     currency: 'ETH',
     logo: 'eth.svg',
     isLayer2: false,
-    explorer: 'https://goerli.etherscan.io',
+    explorer: 'https://sepolia.etherscan.io',
     explorerLogo: 'etherscan.svg',
     explorerLabel: 'Etherscan',
   },