diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..1612587
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,17 @@
+name: Release
+
+on:
+  push:
+    branches: [ master ]
+
+  workflow_dispatch: {}
+
+jobs:
+  release:
+    name: Node.js
+    uses: artusjs/github-actions/.github/workflows/node-release.yml@v1
+    secrets:
+      NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+      GIT_TOKEN: ${{ secrets.GIT_TOKEN }}
+    with:
+      checkTest: false
diff --git a/lib/connection.js b/lib/connection.js
index 489a739..29c60a5 100644
--- a/lib/connection.js
+++ b/lib/connection.js
@@ -4,41 +4,40 @@ const Operator = require('./operator');
 const kWrapToRDS = Symbol('kWrapToRDS');
 
 class RDSConnection extends Operator {
-  #conn;
   constructor(conn) {
     super();
-    this.#conn = conn;
-    if (!this.#conn[kWrapToRDS]) {
+    this.conn = conn;
+    if (!this.conn[kWrapToRDS]) {
       [
         'query',
         'beginTransaction',
         'commit',
         'rollback',
       ].forEach(key => {
-        this.#conn[key] = promisify(this.#conn[key]);
+        this.conn[key] = promisify(this.conn[key]);
       });
-      this.#conn[kWrapToRDS] = true;
+      this.conn[kWrapToRDS] = true;
     }
   }
 
   release() {
-    return this.#conn.release();
+    return this.conn.release();
   }
 
   async _query(sql) {
-    return await this.#conn.query(sql);
+    return await this.conn.query(sql);
   }
 
   async beginTransaction() {
-    return await this.#conn.beginTransaction();
+    return await this.conn.beginTransaction();
   }
 
   async commit() {
-    return await this.#conn.commit();
+    return await this.conn.commit();
   }
 
   async rollback() {
-    return await this.#conn.rollback();
+    return await this.conn.rollback();
   }
 }
 
diff --git a/lib/transaction.js b/lib/transaction.js
index cc8f22f..299f146 100644
--- a/lib/transaction.js
+++ b/lib/transaction.js
@@ -1,43 +1,42 @@
 const Operator = require('./operator');
 
 class RDSTransaction extends Operator {
-  #conn;
   isCommit = false;
   isRollback = false;
   constructor(conn) {
     super();
-    this.#conn = conn;
+    this.conn = conn;
   }
 
   async commit() {
     this.#check();
     try {
-      return await this.#conn.commit();
+      return await this.conn.commit();
     } finally {
       this.isCommit = true;
-      this.#conn.release();
-      this.#conn = null;
+      this.conn.release();
+      this.conn = null;
     }
   }
 
   async rollback() {
     this.#check();
     try {
-      return await this.#conn.rollback();
+      return await this.conn.rollback();
     } finally {
       this.isRollback = true;
-      this.#conn.release();
-      this.#conn = null;
+      this.conn.release();
+      this.conn = null;
     }
   }
 
   async _query(sql) {
     this.#check();
-    return await this.#conn._query(sql);
+    return await this.conn._query(sql);
   }
 
   #check() {
-    if (!this.#conn) {
+    if (!this.conn) {
       throw new Error('transaction was commit or rollback');
     }
   }