diff --git a/hardhat.config.ts b/hardhat.config.ts
index 86557ac..d3820d5 100644
--- a/hardhat.config.ts
+++ b/hardhat.config.ts
@@ -95,7 +95,7 @@ const config: HardhatUserConfig = {
     },
     arbeth: {
       url: `${QUICKNODE_ARBITRUM_ONE_API_KEY}`,
-      accounts: [`${PRIVATE_KEY_FOR_V4_CONTRACT_DEPLOYMENT}`]
+      accounts: [`${MAINNET_PRIVATE_KEY_FOR_CONTRACT_DEPLOYMENT}`]
     },
     topeth: {
       url: `${QUICKNODE_OPTIMISM_SEPOLIA_API_KEY}`,
@@ -103,7 +103,7 @@ const config: HardhatUserConfig = {
     },
     opeth: {
       url: `${QUICKNODE_OPTIMISM_API_KEY}`,
-      accounts: [`${PRIVATE_KEY_FOR_V4_CONTRACT_DEPLOYMENT}`]
+      accounts: [`${MAINNET_PRIVATE_KEY_FOR_CONTRACT_DEPLOYMENT}`]
     },
     tzketh: {
       url: `${QUICKNODE_ZKSYNC_SEPOLIA_API_KEY}`,