diff --git a/src/types.ts b/src/types.ts
index 4c271abf0..fa51afcf3 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -136,8 +136,8 @@ export enum Chain {
   ArbitrumSepolia = "arbitrum_sepolia",
   /** Avalanche Fuji Testnet */
   Fuji = "avalanche_fuji",
-  /** Optimism Goerli Testnet */
-  OptimismGoerli = "optimism_goerli",
+  /** Optimism Sepolia Testnet */
+  OptimismSepolia = "optimism_sepolia",
   /** Solana Devnet */
   SolanaDevnet = "soldev",
   /** Zora Testnet */
diff --git a/src/utils/utils.ts b/src/utils/utils.ts
index 817b137c9..42a5daedf 100644
--- a/src/utils/utils.ts
+++ b/src/utils/utils.ts
@@ -197,7 +197,7 @@ export const getWETHAddress = (chain: Chain) => {
     case Chain.Base:
     case Chain.BaseSepolia:
     case Chain.Optimism:
-    case Chain.OptimismGoerli:
+    case Chain.OptimismSepolia:
     case Chain.Zora:
     case Chain.ZoraTestnet:
       return "0x4200000000000000000000000000000000000006";
@@ -244,7 +244,7 @@ export const isTestChain = (chain: Chain): boolean => {
     case Chain.BNBTestnet:
     case Chain.ArbitrumSepolia:
     case Chain.Fuji:
-    case Chain.OptimismGoerli:
+    case Chain.OptimismSepolia:
     case Chain.SolanaDevnet:
     case Chain.ZoraTestnet:
       return true;