diff --git a/pom.xml b/pom.xml
index f0b1caf..be4f703 100644
--- a/pom.xml
+++ b/pom.xml
@@ -57,7 +57,7 @@
     <dependency>
       <groupId>commons-collections</groupId>
       <artifactId>commons-collections</artifactId>
-      <version>3.2.1</version>
+      <version>3.2.2</version>
     </dependency>
     <dependency>
       <groupId>com.google.guava</groupId>