diff --git a/optaplanner-quickstarts/spring-boot-school-timetabling/pom.xml b/optaplanner-quickstarts/spring-boot-school-timetabling/pom.xml
index 9f60004003..0ba93f7e7c 100644
--- a/optaplanner-quickstarts/spring-boot-school-timetabling/pom.xml
+++ b/optaplanner-quickstarts/spring-boot-school-timetabling/pom.xml
@@ -14,7 +14,7 @@
     <version.org.yaml.snakeyaml>2.0</version.org.yaml.snakeyaml>
     <version.org.springframework.boot>2.5.15</version.org.springframework.boot>
     <version.org.webjars.webjars-locator>0.37</version.org.webjars.webjars-locator>
-    <version.org.webjars.bootstrap>4.3.1</version.org.webjars.bootstrap>
+    <version.org.webjars.bootstrap>5.3.3</version.org.webjars.bootstrap>
     <version.org.webjars.font-awesome>5.11.2</version.org.webjars.font-awesome>
     <version.org.webjars.momentjs>2.24.0</version.org.webjars.momentjs>