diff --git a/env.ts b/env.ts
index 5d7a689..fa25634 100644
--- a/env.ts
+++ b/env.ts
@@ -16,6 +16,7 @@ const OROCHI_CONFIGURATION = {
   OROCHI_ENCRYPTED_PASSPHRASE: '',
   LOCAL_RPC: '',
   RESULT_PATH: './output/result.json',
+  OROCHI_MNEMONIC: '',
 };
 
 export type TEnvironment = typeof OROCHI_CONFIGURATION;
diff --git a/tasks/generate-orocle-operator.ts b/tasks/generate-orocle-operator.ts
index 65e4c7e..060ce07 100644
--- a/tasks/generate-orocle-operator.ts
+++ b/tasks/generate-orocle-operator.ts
@@ -17,7 +17,7 @@ task('generate:local-operator', 'Generate operator address only in local network
     }
     const { chainId } = hre.network.config;
     const dataTable = [];
-    const wallet = ethers.Wallet.createRandom();
+    const wallet = ethers.Wallet.fromPhrase(env.OROCHI_MNEMONIC);
     const [master] = await hre.ethers.getSigners();
 
     for (let i = 0; i < 5; i += 1) {