diff --git a/chapter02_total/pom.xml b/chapter02_total/pom.xml
old mode 100755
new mode 100644
index b753722..85466b9
--- a/chapter02_total/pom.xml
+++ b/chapter02_total/pom.xml
@@ -25,7 +25,7 @@
         <commons.io.version>2.5</commons.io.version>
         <commons.codec.version>1.10</commons.codec.version>
         <qiniu.version>[7.2.0, 7.2.99]</qiniu.version>
-        <shiro.version>1.4.2</shiro.version>
+        <shiro.version>1.7.1</shiro.version>
         <jwt.version>0.7.0</jwt.version>
         <kaptcha.version>0.0.9</kaptcha.version>
         <quartz.version>2.3.0</quartz.version>