diff --git a/README.md b/README.md
index d423a9c..10ae60a 100644
--- a/README.md
+++ b/README.md
@@ -137,6 +137,7 @@ module.exports = {
     arbiscan: 'MY_API_KEY',
     nova_arbiscan: 'MY_API_KEY',
     bscscan: 'MY_API_KEY',
+    opbnbscan: 'MY_API_KEY',
     snowtrace: 'MY_API_KEY',
     polygonscan: 'MY_API_KEY',
     zkevm_polygonscan: 'MY_API_KEY',
@@ -161,6 +162,7 @@ module.exports = {
 - [Arbiscan](https://arbiscan.io) (Arbitrum Mainnet & Goerli Testnet)
 - [Arbiscan Nova](https://nova.arbiscan.io) (Arbitrum Nova)
 - [BscScan](https://bscscan.com) (BSC Mainnet & Testnet)
+- [OpbnbScan](https://opbnb.bscscan.com) (opBNB Mainnet & opBNB Testnet) 
 - [Snowtrace](https://snowtrace.io/) (Avalanche Mainnet & Fuji Testnet)
 - [PolygonScan](https://polygonscan.com) (Polygon PoS & Mumbai Testnet)
 - [FtmScan](https://ftmscan.com) (Fantom Mainnet & Testnet)
diff --git a/src/constants.ts b/src/constants.ts
index 1c966ee..ee01d2a 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -1,4 +1,4 @@
-export const VERSION = '0.6.6';
+export const VERSION = '0.6.7';
 
 export const SUPPORTED_VERIFIERS = ['etherscan', 'sourcify'];
 
@@ -15,6 +15,7 @@ export const API_URLS: { [chainId: number]: string | undefined } = {
   128: 'https://api.hecoinfo.com/api',
   137: 'https://api.polygonscan.com/api',
   199: 'https://api.bttcscan.com/api',
+  204: 'https://api-opbnb.bscscan.com/api',
   250: 'https://api.ftmscan.com/api',
   256: 'https://api-testnet.hecoinfo.com/api',
   338: 'https://api-testnet.cronoscan.com/api',
@@ -27,6 +28,7 @@ export const API_URLS: { [chainId: number]: string | undefined } = {
   1287: 'https://api-moonbase.moonscan.io/api',
   1442: 'https://api-testnet-zkevm.polygonscan.com/api',
   4002: 'https://api-testnet.ftmscan.com/api',
+  5611: 'https://api-opbnb-testnet.bscscan.com/api',
   8453: 'https://api.basescan.org/api',
   42161: 'https://api.arbiscan.io/api',
   42170: 'https://api-nova.arbiscan.io/api',
@@ -54,6 +56,7 @@ export const EXPLORER_URLS: { [chainId: number]: string | undefined } = {
   128: 'https://hecoinfo.com/address',
   137: 'https://polygonscan.com/address',
   199: 'https://bttcscan.com/address',
+  204: 'https://opbnb.bscscan.com/address',
   250: 'https://ftmscan.com/address',
   256: 'https://testnet.hecoinfo.com/address',
   338: 'https://testnet.cronoscan.com/address',
@@ -66,6 +69,7 @@ export const EXPLORER_URLS: { [chainId: number]: string | undefined } = {
   1287: 'https://moonbase.moonscan.io/address',
   1442: 'https://testnet-zkevm.polygonscan.com/address',
   4002: 'https://testnet.ftmscan.com/address',
+  5611: 'https://opbnb-testnet.bscscan.com/address',
   8453: 'https://basescan.org/address',
   42161: 'https://arbiscan.io/address',
   42170: 'https://nova.arbiscan.io/address',