diff --git a/interfaces/taverna/client/pom.xml b/interfaces/taverna/client/pom.xml
index 7f7869f..29ff634 100644
--- a/interfaces/taverna/client/pom.xml
+++ b/interfaces/taverna/client/pom.xml
@@ -112,7 +112,7 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
-			<version>4.2.4</version>
+			<version>4.5.13</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>