diff --git a/org.wikipathways.client/pom.xml b/org.wikipathways.client/pom.xml
index 390e515..f823527 100644
--- a/org.wikipathways.client/pom.xml
+++ b/org.wikipathways.client/pom.xml
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.3.5</version>
+            <version>4.5.13</version>
         </dependency>
         <dependency>
             <groupId>commons-logging</groupId>