diff --git a/com.pilosa.client/pom.xml b/com.pilosa.client/pom.xml
index 70a3237..c80325b 100644
--- a/com.pilosa.client/pom.xml
+++ b/com.pilosa.client/pom.xml
@@ -274,7 +274,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.5.3</version>
+            <version>4.5.13</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>