diff --git a/iotp-adaptor/pom.xml b/iotp-adaptor/pom.xml
index e9d57d9..84cb80c 100644
--- a/iotp-adaptor/pom.xml
+++ b/iotp-adaptor/pom.xml
@@ -96,7 +96,7 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
-			<version>4.5.2</version>
+			<version>4.5.13</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.ws.commons.util</groupId>