diff --git a/chapter-4/chapter-4-spring-data-jpa/pom.xml b/chapter-4/chapter-4-spring-data-jpa/pom.xml
index 44fd748b..a184706c 100644
--- a/chapter-4/chapter-4-spring-data-jpa/pom.xml
+++ b/chapter-4/chapter-4-spring-data-jpa/pom.xml
@@ -15,7 +15,7 @@
Spring Data JPA example
11
- 1.21.3
+ 2.0.0
diff --git a/chapter-4/chapter-4-spring-data-r2dbc/pom.xml b/chapter-4/chapter-4-spring-data-r2dbc/pom.xml
index 736c2d8d..630a33bb 100644
--- a/chapter-4/chapter-4-spring-data-r2dbc/pom.xml
+++ b/chapter-4/chapter-4-spring-data-r2dbc/pom.xml
@@ -15,7 +15,7 @@
Spring Data R2DBC example
11
- 1.21.3
+ 2.0.0
diff --git a/chapter-5/chapter-5-spring-kafka-streams/pom.xml b/chapter-5/chapter-5-spring-kafka-streams/pom.xml
index d4792d28..2d19bf9f 100644
--- a/chapter-5/chapter-5-spring-kafka-streams/pom.xml
+++ b/chapter-5/chapter-5-spring-kafka-streams/pom.xml
@@ -15,7 +15,7 @@
11
2021.0.9
- 1.21.3
+ 2.0.0