diff --git a/pom.xml b/pom.xml
index 188fc540f7..e350617ce8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -80,7 +80,7 @@
     <resteasyVersion>3.0.12.Final</resteasyVersion>
     <jaxrsVersion>3.0.12.Final</jaxrsVersion>
     <asyncServletVersion>3.0.19.Final</asyncServletVersion>
-    <undertowVersion>2.2.27.Final</undertowVersion>
+    <undertowVersion>2.3.21.Final</undertowVersion>
     <xnioVersion>3.8.2.Final</xnioVersion>
     <keycloakVersion>17.0.1</keycloakVersion>
     <bouncycastleVersion>1.70</bouncycastleVersion>