diff --git a/ispyb-ejb/pom.xml b/ispyb-ejb/pom.xml
index f98d5971..cd44876c 100644
--- a/ispyb-ejb/pom.xml
+++ b/ispyb-ejb/pom.xml
@@ -107,7 +107,7 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
-			<version>4.4</version>
+			<version>4.5.13</version>
 		</dependency>
 		<dependency>
 			<groupId>jhdf</groupId>