diff --git a/yschool/pom.xml b/yschool/pom.xml
old mode 100755
new mode 100644
index 153b637..205db19
--- a/yschool/pom.xml
+++ b/yschool/pom.xml
@@ -107,7 +107,7 @@
         <dependency>
             <groupId>commons-collections</groupId>
             <artifactId>commons-collections</artifactId>
-            <version>3.2</version>
+            <version>3.2.2</version>
         </dependency>
         <dependency>
             <groupId>commons-logging</groupId>