diff --git a/ch25/pom.xml b/ch25/pom.xml
old mode 100755
new mode 100644
index 10846de4..68815996
--- a/ch25/pom.xml
+++ b/ch25/pom.xml
@@ -222,7 +222,7 @@
             <dependency>
                 <groupId>com.alibaba</groupId>
                 <artifactId>fastjson</artifactId>
-                <version>1.2.31</version>
+                <version>1.2.83</version>
             </dependency>
             <!-- Misc End -->
             <!-- jdbc driver -->