diff --git a/imooc-security-demo/pom.xml b/imooc-security-demo/pom.xml
index 838b2c5..ee0e119 100644
--- a/imooc-security-demo/pom.xml
+++ b/imooc-security-demo/pom.xml
@@ -52,7 +52,7 @@
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
-            <version>2.5</version>
+            <version>2.7</version>
         </dependency>
     </dependencies>
     <build>