diff --git a/ch06-core/ch06-core-properties/pom.xml b/ch06-core/ch06-core-properties/pom.xml
index 09909bd..87c19e4 100644
--- a/ch06-core/ch06-core-properties/pom.xml
+++ b/ch06-core/ch06-core-properties/pom.xml
@@ -14,7 +14,7 @@
     <packaging>jar</packaging>
 
     <properties>
-        <spring.boot.version>1.5.0.RELEASE</spring.boot.version>
+        <spring.boot.version>2.5.12</spring.boot.version>
     </properties>
 
     <dependencies>