diff --git a/tools/checkstyle-4.3/pom.xml b/tools/checkstyle-4.3/pom.xml
index 8efc30e..7114e60 100644
--- a/tools/checkstyle-4.3/pom.xml
+++ b/tools/checkstyle-4.3/pom.xml
@@ -29,7 +29,7 @@
     <dependency>
       <groupId>commons-collections</groupId>
       <artifactId>commons-collections</artifactId>
-      <version>2.1</version>
+      <version>3.2.2</version>
     </dependency>
     <dependency>
       <groupId>commons-logging</groupId>