diff --git a/packages/light-godwoken/src/__tests__/clientConfig.ts b/packages/light-godwoken/src/__tests__/clientConfig.ts
index 5af74f77..818e0249 100644
--- a/packages/light-godwoken/src/__tests__/clientConfig.ts
+++ b/packages/light-godwoken/src/__tests__/clientConfig.ts
@@ -70,6 +70,7 @@ export const testConfig: LightGodwokenConfigMap = {
         },
       },
       GW_POLYJUICE_RPC_URL: "https://godwoken-testnet-web3-rpc.ckbapp.dev",
+      GW_POLYJUICE_CHAIN_ID: 71393,
       SCANNER_URL: "",
       CHAIN_NAME: "",
       SCANNER_API: "",
@@ -117,6 +118,7 @@ export const testConfig: LightGodwokenConfigMap = {
         },
       },
       GW_POLYJUICE_RPC_URL: "https://godwoken-testnet-v1.ckbapp.dev",
+      GW_POLYJUICE_CHAIN_ID: 71394,
       CHAIN_NAME: "https://testnet.ckb.dev",
       SCANNER_URL: "",
       SCANNER_API: "",