diff --git a/use-cases/school-timetabling/build.gradle b/use-cases/school-timetabling/build.gradle
index 8b87973168..901b496709 100644
--- a/use-cases/school-timetabling/build.gradle
+++ b/use-cases/school-timetabling/build.gradle
@@ -3,7 +3,7 @@ plugins {
     id "io.quarkus" version "3.9.1"
 }
 
-def quarkusVersion = "3.8.3"
+def quarkusVersion = "3.9.1"
 def timefoldVersion = "999-SNAPSHOT"
 
 group = "org.acme"