diff --git a/biosdk-client/pom.xml b/biosdk-client/pom.xml
index 48b34a40..fdcd7fb8 100644
--- a/biosdk-client/pom.xml
+++ b/biosdk-client/pom.xml
@@ -151,7 +151,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.5.6</version>
+            <version>4.5.13</version>
         </dependency>
 
         <!-- testing temphttps://mvnrepository.com/artifact/com.googlecode.json-simple/json-simple -->