diff --git a/pom.xml b/pom.xml
index 0ccb719..ac6390f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -42,7 +42,7 @@
         <dependency>
             <groupId>io.undertow</groupId>
             <artifactId>undertow-core</artifactId>
-            <version>2.2.31.Final</version>
+            <version>2.3.21.Final</version>
         </dependency>
 
         <dependency>