diff --git a/https-demo/pom.xml b/https-demo/pom.xml
index 06c9128..2ca3992 100644
--- a/https-demo/pom.xml
+++ b/https-demo/pom.xml
@@ -73,7 +73,7 @@
         <dependency>
             <groupId>io.undertow</groupId>
             <artifactId>undertow-core</artifactId>
-            <version>2.1.4.Final</version>
+            <version>2.2.24.Final</version>
         </dependency>
         <dependency>
             <groupId>io.undertow</groupId>