diff --git a/chains.go b/chains.go
index 66c0a0c..7189548 100644
--- a/chains.go
+++ b/chains.go
@@ -167,13 +167,13 @@ func GetMainnetChains() []Chain {
 		},
 		{
 			Name:                 "Unichain",
-			ChainID:              big.NewInt(1301),
+			ChainID:              big.NewInt(130),
 			Domain:               10,
-			RPC:                  "https://sepolia.unichain.org",
+			RPC:                  "https://mainnet.unichain.org",
 			TokenMessengerV2:     tokenMessengerV2Addr,
 			MessageTransmitterV2: messageTransmitterV2Addr,
-			USDC:                 "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
-			Explorer:             "https://unichain.org",
+			USDC:                 "0x078D782b760474a361dDA0AF3839290b0EF57AD6",
+			Explorer:             "https://uniscan.xyz",
 			IsTestnet:            false,
 			InstantFinality:      false,
 		},
@@ -400,7 +400,7 @@ func GetTestnetChains() []Chain {
 			RPC:                  "https://sepolia.unichain.org",
 			TokenMessengerV2:     tokenMessengerV2Addr,
 			MessageTransmitterV2: messageTransmitterV2Addr,
-			USDC:                 "0x5fd84259d66Cd46123540766Be93DFE6D43130D7",
+			USDC:                 "0x31d0220469e10c4E71834a79b1f276d740d3768F",
 			Explorer:             "https://sepolia.uniscan.xyz",
 			IsTestnet:            true,
 			InstantFinality:      false,