diff --git a/pom.xml b/pom.xml
index b019714..11e4c2a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -96,7 +96,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.5.6</version>
+            <version>4.5.13</version>
         </dependency>
         <!-- pagehelper -->
         <dependency>