diff --git a/Dockerfile b/Dockerfile
index 1b7093b..c669e48 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,7 @@
 # sudo docker build -t linebotts .
-# sudo docker exec -it 2e8e3995aa52 /bin/bash
+# sudo docker run -v /volume1/homes/JianMiau/www/certificate:/certificate --name=linebotts --restart always --net=host linebotts
+# docker ps
+# sudo docker exec -it f39bfa9c0819 /bin/bash
 
 # 選擇node
 FROM node:19.4.0
@@ -10,6 +12,8 @@ ENV NODE_ENV=production
 # 指定預設/工作資料夾
 WORKDIR /app
 
+VOLUME ["/certificate"]
+
 # 只copy package.json檔案
 COPY ["package.json", "./"]
 
diff --git a/src/LineBotClass.ts b/src/LineBotClass.ts
index d329f35..6420dcc 100644
--- a/src/LineBotClass.ts
+++ b/src/LineBotClass.ts
@@ -28,9 +28,9 @@ export default class LineBotClass {
 	 */
 	constructor() {
 		//讀取憑證及金鑰
-		const prikey: string = fs.readFileSync("./certificate/RSA-privkey.pem", "utf8");
-		const cert: string = fs.readFileSync("./certificate/RSA-cert.pem", "utf8");
-		const cafile: string = fs.readFileSync("./certificate/RSA-chain.pem", "utf-8");
+		const prikey: string = fs.readFileSync("/certificate/RSA-privkey.pem", "utf8");
+		const cert: string = fs.readFileSync("/certificate/RSA-cert.pem", "utf8");
+		const cafile: string = fs.readFileSync("/certificate/RSA-chain.pem", "utf-8");
 
 		//建立憑證及金鑰
 		const credentials: Object = {