diff --git a/build.gradle b/build.gradle
index 5ed5e55..43e41f9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -23,7 +23,7 @@ allprojects {
         protobufVersion = "3.25.5"
         slf4jVersion = "2.0.17"
         springVersion = "6.2.11"
-        undertowVersion = "2.3.19.Final"
+        undertowVersion = "2.3.20.Final"
 
         // testing
         approvaltestsVersion = "24.22.0"