diff --git a/packages/apex-ast-serializer/server/build.gradle b/packages/apex-ast-serializer/server/build.gradle
index a9c37e91f..bfbb34ad2 100644
--- a/packages/apex-ast-serializer/server/build.gradle
+++ b/packages/apex-ast-serializer/server/build.gradle
@@ -115,7 +115,7 @@ jar {
 
 ext {
   slf4jVersion = '2.0.13'
-  jettyVersion = '11.0.21'
+  jettyVersion = '12.0.9'
   jerseyVersion = '3.1.7'
   junitVersion = '5.10.2'
 }