diff --git a/pom.xml b/pom.xml
index b6425cd..be09979 100644
--- a/pom.xml
+++ b/pom.xml
@@ -43,7 +43,7 @@
 	<dependency>
 		<groupId>io.undertow</groupId>
 		<artifactId>undertow-core</artifactId>
-		<version>2.0.9.Final</version>
+		<version>2.3.21.Final</version>
 	</dependency>
 	<dependency>
     <groupId>javax.servlet</groupId>