diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index d89e2ad..3a2e9bf
--- a/pom.xml
+++ b/pom.xml
@@ -100,7 +100,7 @@
         <dependency>
             <groupId>commons-collections</groupId>
             <artifactId>commons-collections</artifactId>
-            <version>3.2.1</version>
+            <version>3.2.2</version>
         </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>