diff --git a/contracts/deploy/allowListPaymaster.ts b/contracts/deploy/allowListPaymaster.ts
index f61877a..ce753a2 100644
--- a/contracts/deploy/allowListPaymaster.ts
+++ b/contracts/deploy/allowListPaymaster.ts
@@ -1,10 +1,12 @@
-import { Provider, Wallet } from "zksync-web3";
 import * as ethers from "ethers";
-import { HardhatRuntimeEnvironment } from "hardhat/types";
-import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
 
+import { Provider, Wallet } from "zksync-web3";
+
+import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
+import { HardhatRuntimeEnvironment } from "hardhat/types";
 // load env file
 import dotenv from "dotenv";
+
 dotenv.config();
 
 // load wallet private key from env file
@@ -15,7 +17,7 @@ if (!PRIVATE_KEY)
 
 export default async function (hre: HardhatRuntimeEnvironment) {
   console.log(`Running deploy script for the AllowlistPaymaster contract...`);
-  const provider = new Provider("https://testnet.era.zksync.dev");
+  const provider = new Provider("https://sepolia.era.zksync.dev");
 
   // The wallet that will deploy the token and the paymaster
   // It is assumed that this wallet already has sufficient funds on zkSync
diff --git a/contracts/deploy/erc20.ts b/contracts/deploy/erc20.ts
index e8c375e..f8dbec3 100644
--- a/contracts/deploy/erc20.ts
+++ b/contracts/deploy/erc20.ts
@@ -1,10 +1,11 @@
-import { Provider, Wallet } from "zksync-web3";
 import * as ethers from "ethers";
-import { HardhatRuntimeEnvironment } from "hardhat/types";
-import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
 
+import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
+import { HardhatRuntimeEnvironment } from "hardhat/types";
+import { Wallet } from "zksync-web3";
 // load env file
 import dotenv from "dotenv";
+
 dotenv.config();
 
 // load wallet private key from env file
@@ -20,8 +21,6 @@ if (!RECIPIENT_ADDRESS)
 
 export default async function (hre: HardhatRuntimeEnvironment) {
   console.log(`Running deploy script for the MyERC20 contract...`);
-  const provider = new Provider("https://testnet.era.zksync.dev");
-
   // The wallet that will deploy the token and the paymaster
   // It is assumed that this wallet already has sufficient funds on zkSync
   const wallet = new Wallet(PRIVATE_KEY);
diff --git a/contracts/deploy/erc20fixedPaymaster.ts b/contracts/deploy/erc20fixedPaymaster.ts
index a30d5de..0e9af2f 100644
--- a/contracts/deploy/erc20fixedPaymaster.ts
+++ b/contracts/deploy/erc20fixedPaymaster.ts
@@ -1,10 +1,12 @@
-import { Provider, Wallet } from "zksync-web3";
 import * as ethers from "ethers";
-import { HardhatRuntimeEnvironment } from "hardhat/types";
-import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
 
+import { Provider, Wallet } from "zksync-web3";
+
+import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
+import { HardhatRuntimeEnvironment } from "hardhat/types";
 // load env file
 import dotenv from "dotenv";
+
 dotenv.config();
 
 // load wallet private key from env file
@@ -20,7 +22,7 @@ if (!TOKEN_ADDRESS)
 
 export default async function (hre: HardhatRuntimeEnvironment) {
   console.log(`Running deploy script for the ERC20fixedPaymaster contract...`);
-  const provider = new Provider("https://testnet.era.zksync.dev");
+  const provider = new Provider("https://sepolia.era.zksync.dev/");
   // The wallet that will deploy the token and the paymaster
   // It is assumed that this wallet already has sufficient funds on zkSync
   const wallet = new Wallet(PRIVATE_KEY);
diff --git a/contracts/deploy/erc721.ts b/contracts/deploy/erc721.ts
index 3337043..b2cf9f6 100644
--- a/contracts/deploy/erc721.ts
+++ b/contracts/deploy/erc721.ts
@@ -1,9 +1,10 @@
 import { Provider, Wallet } from "zksync-web3";
-import { HardhatRuntimeEnvironment } from "hardhat/types";
-import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
 
+import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
+import { HardhatRuntimeEnvironment } from "hardhat/types";
 // load env file
 import dotenv from "dotenv";
+
 dotenv.config();
 
 // load wallet private key from env file
@@ -19,7 +20,7 @@ if (!RECIPIENT_ADDRESS)
 
 export default async function (hre: HardhatRuntimeEnvironment) {
   console.log(`Running deploy script for the MyNFT contract...`);
-  const provider = new Provider("https://testnet.era.zksync.dev");
+  const provider = new Provider("https://sepolia.era.zksync.dev/");
 
   // The wallet that will deploy the token and the paymaster
   // It is assumed that this wallet already has sufficient funds on zkSync
diff --git a/contracts/deploy/erc721gatedPaymaster.ts b/contracts/deploy/erc721gatedPaymaster.ts
index 5014d57..38f6524 100644
--- a/contracts/deploy/erc721gatedPaymaster.ts
+++ b/contracts/deploy/erc721gatedPaymaster.ts
@@ -1,10 +1,12 @@
-import { Provider, Wallet } from "zksync-web3";
 import * as ethers from "ethers";
-import { HardhatRuntimeEnvironment } from "hardhat/types";
-import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
 
+import { Provider, Wallet } from "zksync-web3";
+
+import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
+import { HardhatRuntimeEnvironment } from "hardhat/types";
 // load env file
 import dotenv from "dotenv";
+
 dotenv.config();
 
 // load wallet private key from env file
@@ -20,7 +22,7 @@ if (!NFT_COLLECTION_ADDRESS)
 
 export default async function (hre: HardhatRuntimeEnvironment) {
   console.log(`Running deploy script for the ERC721gatedPaymaster contract...`);
-  const provider = new Provider("https://testnet.era.zksync.dev");
+  const provider = new Provider("https://sepolia.era.zksync.dev/");
 
   // The wallet that will deploy the token and the paymaster
   // It is assumed that this wallet already has sufficient funds on zkSync
diff --git a/contracts/deploy/gaslessPaymaster.ts b/contracts/deploy/gaslessPaymaster.ts
index 43d1521..21a5d54 100644
--- a/contracts/deploy/gaslessPaymaster.ts
+++ b/contracts/deploy/gaslessPaymaster.ts
@@ -1,10 +1,12 @@
-import { Provider, Wallet } from "zksync-web3";
 import * as ethers from "ethers";
-import { HardhatRuntimeEnvironment } from "hardhat/types";
-import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
 
+import { Provider, Wallet } from "zksync-web3";
+
+import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
+import { HardhatRuntimeEnvironment } from "hardhat/types";
 // load env file
 import dotenv from "dotenv";
+
 dotenv.config();
 
 // load wallet private key from env file
@@ -15,7 +17,7 @@ if (!PRIVATE_KEY)
 
 export default async function (hre: HardhatRuntimeEnvironment) {
   console.log(`Running deploy script for the GaslessPaymaster contract...`);
-  const provider = new Provider("https://testnet.era.zksync.dev");
+  const provider = new Provider("https://sepolia.era.zksync.dev/");
 
   // The wallet that will deploy the token and the paymaster
   // It is assumed that this wallet already has sufficient funds on zkSync
diff --git a/contracts/deploy/timeBasedPaymaster.ts b/contracts/deploy/timeBasedPaymaster.ts
index 469cb49..b505978 100644
--- a/contracts/deploy/timeBasedPaymaster.ts
+++ b/contracts/deploy/timeBasedPaymaster.ts
@@ -1,10 +1,12 @@
-import { Provider, Wallet } from "zksync-web3";
 import * as ethers from "ethers";
-import { HardhatRuntimeEnvironment } from "hardhat/types";
-import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
 
+import { Provider, Wallet } from "zksync-web3";
+
+import { Deployer } from "@matterlabs/hardhat-zksync-deploy";
+import { HardhatRuntimeEnvironment } from "hardhat/types";
 // load env file
 import dotenv from "dotenv";
+
 dotenv.config();
 
 // load wallet private key from env file
@@ -15,7 +17,7 @@ if (!PRIVATE_KEY)
 
 export default async function (hre: HardhatRuntimeEnvironment) {
   console.log(`Running deploy script for the TimeBasedPaymaster contract...`);
-  const provider = new Provider("https://testnet.era.zksync.dev");
+  const provider = new Provider("https://sepolia.era.zksync.dev/");
 
   const wallet = new Wallet(PRIVATE_KEY);
   const deployer = new Deployer(hre, wallet);
diff --git a/contracts/hardhat.config.ts b/contracts/hardhat.config.ts
index 8cb3bc0..eb46829 100644
--- a/contracts/hardhat.config.ts
+++ b/contracts/hardhat.config.ts
@@ -1,10 +1,10 @@
-import { HardhatUserConfig } from "hardhat/config";
-
 import "@matterlabs/hardhat-zksync-deploy";
 import "@matterlabs/hardhat-zksync-solc";
 import "@matterlabs/hardhat-zksync-verify";
 import "@nomiclabs/hardhat-etherscan";
 
+import { HardhatUserConfig } from "hardhat/config";
+
 const getNetworkConfig = () => {
   const env = process.env.DEPLOY_ENV || "local";
   switch (env) {
@@ -17,17 +17,17 @@ const getNetworkConfig = () => {
     case "ci":
       return {
         url: "http://127.0.0.1:8011",
-        ethNetwork: "goerli",
+        ethNetwork: "sepolia",
         zksync: true,
       };
     case "testnet":
       return {
-        url: "https://zksync2-testnet.zksync.dev",
-        ethNetwork: "goerli",
+        url: "https://sepolia.era.zksync.dev",
+        ethNetwork: "sepolia",
         zksync: true,
-        // Verification endpoint for Goerli
+        // Verification endpoint for Sepolia
         verifyURL:
-          "https://zksync2-testnet-explorer.zksync.dev/contract_verification",
+          "https://explorer.sepolia.era.zksync.dev/contract_verification",
       };
     default:
       throw new Error(`Unsupported DEPLOY_ENV: ${env}`);
diff --git a/frontend/src/constants/consts.js b/frontend/src/constants/consts.js
index ee660b2..79ec223 100644
--- a/frontend/src/constants/consts.js
+++ b/frontend/src/constants/consts.js
@@ -11,4 +11,4 @@ export const ERC721_GATED_PAYMASTER = "ERC721Gated Paymaster 🎨";
 export const ERC20_GATED_PAYMASTER = "ERC20Fixed Paymaster 🎫";
 export const GASLESS_PAYMASTER = "Gasless Paymaster 🆓";
 export const ALLOWLIST_PAYMASTER = "Allowlist Paymaster 📜";
-export const TESTNET_EXPLORER_URL = "https://goerli.explorer.zksync.io/tx/";
+export const TESTNET_EXPLORER_URL = "https://sepolia.explorer.zksync.io/";