diff --git a/lib/MySQL/store.d.ts b/lib/MySQL/store.d.ts
index c60acb2..31f5120 100644
--- a/lib/MySQL/store.d.ts
+++ b/lib/MySQL/store.d.ts
@@ -31,6 +31,6 @@ export declare class MysqlStore<ED extends EntityDict & BaseEntityDict, Cxt exte
     commit(txnId: string): Promise<void>;
     rollback(txnId: string): Promise<void>;
     connect(): void;
-    disconnect(): void;
+    disconnect(): Promise<void>;
     initialize(option: CreateEntityOption): Promise<void>;
 }
diff --git a/lib/MySQL/store.js b/lib/MySQL/store.js
index 4caf11e..06450be 100644
--- a/lib/MySQL/store.js
+++ b/lib/MySQL/store.js
@@ -288,8 +288,8 @@ class MysqlStore extends CascadeStore_1.CascadeStore {
     connect() {
         this.connector.connect();
     }
-    disconnect() {
-        this.connector.disconnect();
+    async disconnect() {
+        await this.connector.disconnect();
     }
     async initialize(option) {
         const schema = this.getSchema();