diff --git a/ch02-usual/pom.xml b/ch02-usual/pom.xml
index 2153802..f59c205 100644
--- a/ch02-usual/pom.xml
+++ b/ch02-usual/pom.xml
@@ -12,7 +12,7 @@
     <artifactId>ch02-usual</artifactId>
 
     <properties>
-        <spring.boot.version>1.5.0.RELEASE</spring.boot.version>
+        <spring.boot.version>2.5.12</spring.boot.version>
     </properties>
 
     <dependencies>