diff --git a/benten-hackernews-bolt/pom.xml b/benten-hackernews-bolt/pom.xml
index 1273c34..a93e837 100644
--- a/benten-hackernews-bolt/pom.xml
+++ b/benten-hackernews-bolt/pom.xml
@@ -23,7 +23,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.5.5</version>
+            <version>4.5.13</version>
         </dependency>
         <dependency>
             <groupId>net.sf.json-lib</groupId>