diff --git a/benten-jenkins-bolt/pom.xml b/benten-jenkins-bolt/pom.xml
index b6842f0..23a4fa5 100644
--- a/benten-jenkins-bolt/pom.xml
+++ b/benten-jenkins-bolt/pom.xml
@@ -33,7 +33,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.5.5</version>
+            <version>4.5.13</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>