diff --git a/pom.xml b/pom.xml
index 6bb5b78..1741aca 100644
--- a/pom.xml
+++ b/pom.xml
@@ -69,7 +69,7 @@
             <dependency>
                 <groupId>org.apache.httpcomponents</groupId>
                 <artifactId>httpclient</artifactId>
-                <version>4.3.1</version>
+                <version>4.3.3</version>
             </dependency>
             <dependency>
                 <groupId>com.google.guava</groupId>
diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/scheduler/PriorityScheduler.java b/webmagic-core/src/main/java/us/codecraft/webmagic/scheduler/PriorityScheduler.java
index d68c22c..04917ad 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/scheduler/PriorityScheduler.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/scheduler/PriorityScheduler.java
@@ -37,7 +37,6 @@ public class PriorityScheduler extends LocalDuplicatedRemovedScheduler {
         }
     });
 
-
     @Override
     public void pushWhenNoDuplicate(Request request, Task task) {
         if (request.getPriority() == 0) {