diff --git a/init-db.sql b/init-db.sql
index 0932958..827f217 100644
--- a/init-db.sql
+++ b/init-db.sql
@@ -43,14 +43,13 @@ CREATE TABLE users (
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
 
 CREATE TABLE verification_attempts (
-  id INT UNSIGNED NOT NULL AUTO_INCREMENT,
   email VARCHAR(255) NOT NULL,
-  attempts INT NOT NULL DEFAULT 1,
-  code_hash VARCHAR(255) NOT NULL,
-  expires_at DATETIME NOT NULL,
+  attempts INT NOT NULL DEFAULT 0,
   last_attempt_at DATETIME NOT NULL,
-  PRIMARY KEY (id),
-  UNIQUE KEY uq_verification_attempts_email (email)
+  locked_until DATETIME DEFAULT NULL,
+  code_hash VARCHAR(128) DEFAULT NULL,
+  expires_at DATETIME DEFAULT NULL,
+  PRIMARY KEY (email)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
 
 -- Insert Admin and Manager demo accounts (Password: password)