diff --git a/chapter4/knative-springboot/pom.xml b/chapter4/knative-springboot/pom.xml
index 08bfa80..464cdf7 100644
--- a/chapter4/knative-springboot/pom.xml
+++ b/chapter4/knative-springboot/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
-    <version>4.0.6</version>
+    <version>4.1.0</version>
     <relativePath/>
   </parent>
   <groupId>com.example.events</groupId>