diff --git a/pom.xml b/pom.xml
index 98864e9..4396637 100644
--- a/pom.xml
+++ b/pom.xml
@@ -32,7 +32,7 @@
 
         <!-- Third-party dependency versions, centralized here so all modules
              stay in sync. Latest stable versions as of 2026-08. -->
-        <undertow.version>2.4.2.Final</undertow.version>
+        <undertow.version>2.4.3.Final</undertow.version>
         <jetty.version>12.1.12</jetty.version>
         <kafka.version>4.3.1</kafka.version>
         <hikari.version>7.1.0</hikari.version>