diff --git a/hardhat.config.js b/hardhat.config.js
index 3f361aff..52787d29 100644
--- a/hardhat.config.js
+++ b/hardhat.config.js
@@ -49,13 +49,14 @@ module.exports = {
       avalanche: networks.avalanche.verifyApiKey,
       polygon: networks.polygon.verifyApiKey,
       sepolia: networks.ethereumSepolia.verifyApiKey,
-      polygonMumbai: networks.polygonMumbai.verifyApiKey,
       polygonAmoy: networks.polygonAmoy.verifyApiKey,
       avalancheFujiTestnet: networks.avalancheFuji.verifyApiKey,
       arbitrum: networks.arbitrum.verifyApiKey,
       arbitrumSepolia: networks.arbitrumSepolia.verifyApiKey,
       baseSepolia: networks.baseSepolia.verifyApiKey,
       optimismSepolia: networks.optimismSepolia.verifyApiKey,
+      base: networks.base.verifyApiKey,
+      optimism: networks.optimism.verifyApiKey,
     },
     customChains: [
       {
@@ -90,6 +91,22 @@ module.exports = {
           browserURL: "https://amoy.polygonscan.com",
         },
       },
+      {
+        network: "base",
+        chainId: 8453,
+        urls: {
+          apiURL: "https://api.basescan.org/api",
+          browserURL: "https://basescan.org",
+        },
+      },
+      {
+        network: "optimism",
+        chainId: 10,
+        urls: {
+          apiUrl: "https://api-optimistic.etherscan.io/api",
+          browserURL: "https://optimistic.etherscan.io/",
+        },
+      },
     ],
   },
   gasReporter: {
diff --git a/tasks/utils/network.js b/tasks/utils/network.js
index 9a423486..6dac9e55 100644
--- a/tasks/utils/network.js
+++ b/tasks/utils/network.js
@@ -2,7 +2,6 @@ const BASE_URLS = {
   1: "https://etherscan.io/",
   137: "https://polygonscan.com/",
   43114: "https://snowtrace.io/",
-  80001: "https://mumbai.polygonscan.com/",
   80002: "https://api-amoy.polygonscan.com/api",
   11155111: "https://sepolia.etherscan.io/",
   43113: "https://testnet.snowtrace.io/",
@@ -10,6 +9,8 @@ const BASE_URLS = {
   42161: "https://arbiscan.io/",
   84532: "https://sepolia.basescan.org/",
   11155420: "https://sepolia-optimistic.etherscan.io/",
+  8453: "https://basescan.org/",
+  10: "https://optimistic.etherscan.io/",
 }
 
 /**