diff --git a/user-manual.md b/user-manual.md
index acb955ee..5963df6a 100644
--- a/user-manual.md
+++ b/user-manual.md
@@ -27,12 +27,12 @@ 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>0.4.0</version>
+            <version>0.4.1</version>
         </dependency>
 		<dependency>
             <groupId>us.codecraft</groupId>
             <artifactId>webmagic-extension</artifactId>
-            <version>0.4.0</version>
+            <version>0.4.1</version>
         </dependency>
 
 #### 项目结构
diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/downloader/HttpClientDownloader.java b/webmagic-core/src/main/java/us/codecraft/webmagic/downloader/HttpClientDownloader.java
index 1daaad96..da34c2de 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/downloader/HttpClientDownloader.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/downloader/HttpClientDownloader.java
@@ -105,6 +105,7 @@ public class HttpClientDownloader implements Downloader {
         }
         RequestConfig.Builder requestConfigBuilder = RequestConfig.custom()
                 .setConnectionRequestTimeout(site.getTimeOut())
+                .setSocketTimeout(site.getTimeOut())
                 .setConnectTimeout(site.getTimeOut())
                 .setCookieSpec(CookieSpecs.BEST_MATCH);
         if (site != null && site.getHttpProxy() != null) {
diff --git a/webmagic-scripts/src/main/java/us/codecraft/webmagic/scripts/ScriptConsole.java b/webmagic-scripts/src/main/java/us/codecraft/webmagic/scripts/ScriptConsole.java
index 7d3b6365..0a2424bf 100644
--- a/webmagic-scripts/src/main/java/us/codecraft/webmagic/scripts/ScriptConsole.java
+++ b/webmagic-scripts/src/main/java/us/codecraft/webmagic/scripts/ScriptConsole.java
@@ -93,6 +93,7 @@ public class ScriptConsole {
                 .language(params.getLanguage()).scriptFromFile(params.getScriptFileName()).thread(params.getThread()).build();
         pageProcessor.getSite().setSleepTime(params.getSleepTime());
         pageProcessor.getSite().setAcceptStatCode(Sets.<Integer>newHashSet(200, 404, 500));
+        pageProcessor.getSite().setUserAgent("Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_8; en-US) AppleWebKit/532.5 (KHTML, like Gecko) Chrome/4.0.249.0 Safari/532.5");
         Spider spider = Spider.create(pageProcessor).thread(params.getThread());
         spider.clearPipeline().addPipeline(new Pipeline() {
             @Override
diff --git a/webmagic-scripts/src/main/java/us/codecraft/webmagic/scripts/ScriptEnginePool.java b/webmagic-scripts/src/main/java/us/codecraft/webmagic/scripts/ScriptEnginePool.java
index 9dc74133..d1e5d7fe 100644
--- a/webmagic-scripts/src/main/java/us/codecraft/webmagic/scripts/ScriptEnginePool.java
+++ b/webmagic-scripts/src/main/java/us/codecraft/webmagic/scripts/ScriptEnginePool.java
@@ -34,6 +34,7 @@ public class ScriptEnginePool {
 
     public void release(ScriptEngine scriptEngine){
         scriptEngines.add(scriptEngine);
+        availableCount.incrementAndGet();
     }
 
 }