diff --git a/src/constants/chains.ts b/src/constants/chains.ts
index a3d5c1a0d..95414b98a 100644
--- a/src/constants/chains.ts
+++ b/src/constants/chains.ts
@@ -7,6 +7,7 @@ export enum SupportedChainId {
   RINKEBY = 4,
   GOERLI = 5,
   KOVAN = 42,
+  SEPOLIA = 11155111,
 
   ARBITRUM_ONE = 42161,
   ARBITRUM_RINKEBY = 421611,
@@ -31,6 +32,7 @@ export enum ChainName {
   RINKEBY = 'rinkeby',
   GOERLI = 'goerli',
   KOVAN = 'kovan',
+  SEPOLIA = 'sepolia',
   OPTIMISM = 'optimism-mainnet',
   OPTIMISM_GOERLI = 'optimism-goerli',
   ARBITRUM_ONE = 'arbitrum-mainnet',
@@ -49,6 +51,7 @@ export const CHAIN_NAMES_TO_IDS: { [chainName: string]: SupportedChainId } = {
   [ChainName.RINKEBY]: SupportedChainId.RINKEBY,
   [ChainName.GOERLI]: SupportedChainId.GOERLI,
   [ChainName.KOVAN]: SupportedChainId.KOVAN,
+  [ChainName.SEPOLIA]: SupportedChainId.SEPOLIA,
   [ChainName.POLYGON]: SupportedChainId.POLYGON,
   [ChainName.POLYGON_MUMBAI]: SupportedChainId.POLYGON_MUMBAI,
   [ChainName.ARBITRUM_ONE]: SupportedChainId.ARBITRUM_ONE,
@@ -87,6 +90,7 @@ export const L1_CHAIN_IDS = [
   SupportedChainId.RINKEBY,
   SupportedChainId.GOERLI,
   SupportedChainId.KOVAN,
+  SupportedChainId.SEPOLIA,
   SupportedChainId.POLYGON,
   SupportedChainId.POLYGON_MUMBAI,
   SupportedChainId.CELO,