diff --git a/packages/protocol-kit/src/utils/eip-3770/config.ts b/packages/protocol-kit/src/utils/eip-3770/config.ts
index 706ee9e47..e54285b38 100644
--- a/packages/protocol-kit/src/utils/eip-3770/config.ts
+++ b/packages/protocol-kit/src/utils/eip-3770/config.ts
@@ -89,6 +89,7 @@ export const networks: NetworkShortName[] = [
   { chainId: 478n, shortName: 'formnetwork' },
   { chainId: 480n, shortName: 'wc' },
   { chainId: 530n, shortName: 'FxCore' },
+  { chainId: 545n, shortName: 'flow-testnet' },
   { chainId: 570n, shortName: 'sys-rollux' },
   { chainId: 588n, shortName: 'metis-stardust' },
   { chainId: 592n, shortName: 'astr' },
@@ -97,6 +98,7 @@ export const networks: NetworkShortName[] = [
   { chainId: 648n, shortName: 'ace' },
   { chainId: 686n, shortName: 'kar' },
   { chainId: 690n, shortName: 'redstone' },
+  { chainId: 747n, shortName: 'flow-mainnet' },
   { chainId: 787n, shortName: 'aca' },
   { chainId: 919n, shortName: 'modesep' },
   { chainId: 938n, shortName: 'haust' },