diff --git a/scripts/encrypt-data.js b/scripts/encrypt-data.js
index 54aaf5d..ab41bc3 100644
--- a/scripts/encrypt-data.js
+++ b/scripts/encrypt-data.js
@@ -92,7 +92,7 @@ class Encrypter {
     return decipher.update(encrypted, 'hex', 'utf8') + decipher.final('utf8');
   }
   static hash(clearText) {
-    return crypto.createHash('sha256', this.key).update(clearText).digest('base64');
+    return crypto.createHmac('sha256', this.key).update(clearText).digest('base64');
   }
 }
 Encrypter.algorithm = 'aes-256-cbc';
diff --git a/src/shared/Encrypter.ts b/src/shared/Encrypter.ts
index 48c8c25..8916776 100644
--- a/src/shared/Encrypter.ts
+++ b/src/shared/Encrypter.ts
@@ -38,6 +38,6 @@ export class Encrypter {
   }
 
   static hash(clearText: string): string {
-    return crypto.createHash('sha256', this.key).update(clearText).digest('base64');
+    return crypto.createHmac('sha256', this.key).update(clearText).digest('base64');
   }
 }
\ No newline at end of file