diff --git a/README.md b/README.md
index 5f13c58..5a48060 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,10 @@
 # aliyun-java-fc-sample
 
+Build binaray:
+```shell
+just build
+```
+
+<br>
+
 Official documents: https://help.aliyun.com/document_detail/113519.html
diff --git a/build.json b/build.json
index 55e28df..7dad69d 100644
--- a/build.json
+++ b/build.json
@@ -3,10 +3,5 @@
     "builder": {
         "name": "maven",
         "version": "3.5.2"
-    },
-    "repo": {
-        "dependencies": [
-            "me.hatter:commons:3.40"
-        ]
     }
 }
\ No newline at end of file
diff --git a/src/main/java/me/hatter/example/HelloHttp.java b/src/main/java/me/hatter/example/HelloHttp.java
index 050a6ca..a0487f3 100644
--- a/src/main/java/me/hatter/example/HelloHttp.java
+++ b/src/main/java/me/hatter/example/HelloHttp.java
@@ -17,8 +17,8 @@ public class HelloHttp implements HttpRequestHandler {
         String requestClientIP = (String) request.getAttribute("FC_REQUEST_CLIENT_IP");
 
         response.setStatus(200);
-        response.setHeader("header1", "value1");
-        response.setHeader("header2", "value2");
+        response.setContentType("text/plain;charset=utf-8");
+        response.setHeader("X-PoweredBy", "FCv1.3.0");
 
         String body = String.format("Path: %s\n Uri: %s\n IP: %s\n", requestPath, requestURI, requestClientIP);
         OutputStream out = response.getOutputStream();