diff --git a/pom.xml b/pom.xml
index 5f354cf8..22014923 100644
--- a/pom.xml
+++ b/pom.xml
@@ -68,7 +68,7 @@
         <commons-lang.version>2.6</commons-lang.version>
         <commons-logging.version>1.1.1</commons-logging.version>
         <commons-math.version>2.2</commons-math.version>
-        <collections.version>3.2.1</collections.version>
+        <collections.version>3.2.2</collections.version>
         <hamcrest.version>1.3</hamcrest.version>
         <httpclient.version>3.1</httpclient.version>
         <jackson.version>1.8.8</jackson.version>