diff --git a/livydemo/pom.xml b/livydemo/pom.xml
index 8793f45..c60a20c 100644
--- a/livydemo/pom.xml
+++ b/livydemo/pom.xml
@@ -32,7 +32,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.5.4</version>
+            <version>4.5.13</version>
         </dependency>
         <dependency>
             <groupId>net.sourceforge.spnego</groupId>