diff --git a/ch25/pom.xml b/ch25/pom.xml
old mode 100755
new mode 100644
index 10846de4..e8821c8c
--- a/ch25/pom.xml
+++ b/ch25/pom.xml
@@ -136,7 +136,7 @@
             <dependency>
                 <groupId>org.mybatis</groupId>
                 <artifactId>mybatis</artifactId>
-                <version>3.4.2</version>
+                <version>3.5.6</version>
             </dependency>
             <dependency>
                 <groupId>org.mybatis</groupId>