diff --git a/packages/core/src/api/user-manager.ts b/packages/core/src/api/user-manager.ts
index bbb54b5e9..c6ac5b3c6 100644
--- a/packages/core/src/api/user-manager.ts
+++ b/packages/core/src/api/user-manager.ts
@@ -696,7 +696,9 @@ class UserManager {
       `${constants.API_HOST}/users/password/${type}`,
       {
         oldPassword: oldPassword,
-        newPassword: await this.db.storage().hash(new_password, email),
+        newPassword: await this.db
+          .storage()
+          .hash(new_password, email.toLowerCase()),
         userKeys: updateUserPayload
       },
       token