diff --git a/README-zh.md b/README-zh.md
index c5ebe15b..62b3c9a5 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -1,9 +1,10 @@
 ![logo](http://webmagic.io/images/logo.jpeg)
 
 
+[![Maven Central](https://maven-badges.herokuapp.com/maven-central/us.codecraft/webmagic-parent/badge.svg?subject=Maven%20Central)](https://maven-badges.herokuapp.com/maven-central/us.codecraft/webmagic-parent/)
+[![License](https://img.shields.io/badge/License-Apache%20License%202.0-blue.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
 [![Build Status](https://travis-ci.org/code4craft/webmagic.png?branch=master)](https://travis-ci.org/code4craft/webmagic)
 
-
 官方网站[http://webmagic.io/](http://webmagic.io/)
 
 >webmagic是一个开源的Java垂直爬虫框架，目标是简化爬虫的开发流程，让开发者专注于逻辑功能的开发。webmagic的核心非常简单，但是覆盖爬虫的整个流程，也是很好的学习爬虫开发的材料。
@@ -38,12 +39,12 @@ webmagic使用maven管理依赖，在项目中添加对应的依赖即可使用w
 <dependency>
     <groupId>us.codecraft</groupId>
     <artifactId>webmagic-core</artifactId>
-    <version>0.7.4</version>
+    <version>0.7.5</version>
 </dependency>
 <dependency>
     <groupId>us.codecraft</groupId>
     <artifactId>webmagic-extension</artifactId>
-    <version>0.7.4</version>
+    <version>0.7.5</version>
 </dependency>
 ```
         
diff --git a/README.md b/README.md
index e5cd511d..14aeac7b 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,8 @@
 [Readme in Chinese](https://github.com/code4craft/webmagic/tree/master/README-zh.md)
 
 
+[![Maven Central](https://maven-badges.herokuapp.com/maven-central/us.codecraft/webmagic-parent/badge.svg?subject=Maven%20Central)](https://maven-badges.herokuapp.com/maven-central/us.codecraft/webmagic-parent/)
+[![License](https://img.shields.io/badge/License-Apache%20License%202.0-blue.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
 [![Build Status](https://travis-ci.org/code4craft/webmagic.png?branch=master)](https://travis-ci.org/code4craft/webmagic)
 
 >A scalable crawler framework. It covers the whole lifecycle of crawler: downloading, url management, content extraction and persistent. It can simplify the development of a  specific crawler.
@@ -23,12 +25,12 @@ Add dependencies to your pom.xml:
 <dependency>
     <groupId>us.codecraft</groupId>
     <artifactId>webmagic-core</artifactId>
-    <version>0.7.4</version>
+    <version>0.7.5</version>
 </dependency>
 <dependency>
     <groupId>us.codecraft</groupId>
     <artifactId>webmagic-extension</artifactId>
-    <version>0.7.4</version>
+    <version>0.7.5</version>
 </dependency>
 ```
         
diff --git a/pom.xml b/pom.xml
index 6a237e64..51e6fdb8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <groupId>us.codecraft</groupId>
-    <version>0.7.4</version>
+    <version>0.7.5</version>
     <modelVersion>4.0.0</modelVersion>
     <packaging>pom</packaging>
     <properties>
@@ -275,7 +275,7 @@
                 <version>3.2.0</version>
                 <configuration>
                     <encoding>UTF-8</encoding>
-                    <doctitle>WebMagic 0.7.4</doctitle>
+                    <doctitle>WebMagic ${project.version}</doctitle>
                     <locale>en_US</locale>
 
                     <!-- avoid the issue: https://bugs.openjdk.java.net/browse/JDK-8212233 -->
diff --git a/webmagic-core/pom.xml b/webmagic-core/pom.xml
index 820651a4..ec718a1e 100644
--- a/webmagic-core/pom.xml
+++ b/webmagic-core/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>us.codecraft</groupId>
         <artifactId>webmagic-parent</artifactId>
-        <version>0.7.4</version>
+        <version>0.7.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/webmagic-coverage/pom.xml b/webmagic-coverage/pom.xml
index b1998a31..16ed1b45 100644
--- a/webmagic-coverage/pom.xml
+++ b/webmagic-coverage/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <groupId>us.codecraft</groupId>
         <artifactId>webmagic-parent</artifactId>
-        <version>0.7.4</version>
+        <version>0.7.5</version>
     </parent>
 
     <artifactId>webmagic-coverage</artifactId>
diff --git a/webmagic-extension/pom.xml b/webmagic-extension/pom.xml
index 87900efd..85d5c639 100644
--- a/webmagic-extension/pom.xml
+++ b/webmagic-extension/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>us.codecraft</groupId>
         <artifactId>webmagic-parent</artifactId>
-        <version>0.7.4</version>
+        <version>0.7.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/webmagic-samples/pom.xml b/webmagic-samples/pom.xml
index bdca2b62..dda18216 100644
--- a/webmagic-samples/pom.xml
+++ b/webmagic-samples/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>webmagic-parent</artifactId>
         <groupId>us.codecraft</groupId>
-        <version>0.7.4</version>
+        <version>0.7.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/webmagic-saxon/pom.xml b/webmagic-saxon/pom.xml
index d3a57f25..119e50f1 100644
--- a/webmagic-saxon/pom.xml
+++ b/webmagic-saxon/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>webmagic-parent</artifactId>
         <groupId>us.codecraft</groupId>
-        <version>0.7.4</version>
+        <version>0.7.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/webmagic-scripts/pom.xml b/webmagic-scripts/pom.xml
index 85b735fe..1aca5b3a 100755
--- a/webmagic-scripts/pom.xml
+++ b/webmagic-scripts/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>webmagic-parent</artifactId>
         <groupId>us.codecraft</groupId>
-        <version>0.7.4</version>
+        <version>0.7.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/webmagic-selenium/pom.xml b/webmagic-selenium/pom.xml
index d0cb77c0..42a6da90 100644
--- a/webmagic-selenium/pom.xml
+++ b/webmagic-selenium/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<artifactId>webmagic-parent</artifactId>
 		<groupId>us.codecraft</groupId>
-		<version>0.7.4</version>
+		<version>0.7.5</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>