diff --git a/apps/sparkpost-samples-app/pom.xml b/apps/sparkpost-samples-app/pom.xml
index 74ba9a2..b6620f0 100644
--- a/apps/sparkpost-samples-app/pom.xml
+++ b/apps/sparkpost-samples-app/pom.xml
@@ -29,7 +29,7 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
-			<version>4.5</version>
+			<version>4.5.13</version>
 		</dependency>
 		<!-- the following two dependencies are required for correct jmockit operation 
 			under maven see http://code.google.com/p/jmockit/issues/detail?id=128 comment