diff --git a/20171217/pom.xml b/20171217/pom.xml
index 4d5ac94..49ffc4f 100644
--- a/20171217/pom.xml
+++ b/20171217/pom.xml
@@ -10,7 +10,7 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
-			<version>4.5.4</version>
+			<version>4.5.13</version>
 		</dependency>
 
 		<dependency>