diff --git a/java/light-4j/pom.xml b/java/light-4j/pom.xml
index 7be2e5b3dfe..68db9a60fc2 100644
--- a/java/light-4j/pom.xml
+++ b/java/light-4j/pom.xml
@@ -13,7 +13,7 @@
         <project.main.class>com.networknt.server.Server</project.main.class>
         <version.light-4j>[2.1,2.2)</version.light-4j>
         <version.jackson>[1.0,)</version.jackson>
-        <version.undertow>2.3.17.Final</version.undertow>
+        <version.undertow>2.3.18.Final</version.undertow>
         <version.json-schema-validator>[1.0,)</version.json-schema-validator>
         <version.fastscanner>[1.0,)</version.fastscanner>
     </properties>