diff --git a/pom.xml b/pom.xml
index 76ae922..0b1f20f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -57,7 +57,7 @@
     <!-- Set versions for depending jars -->
     <antlr.version>2.7.7</antlr.version>
     <commons.codec.version>1.13</commons.codec.version>
-    <commons.collections.version>4.3</commons.collections.version>
+    <commons.collections.version>4.4</commons.collections.version>
     <commons.lang.version>3.9</commons.lang.version>
     <commons.pool.version>2.6.2</commons.pool.version>
     <dom4j.version>2.1.1</dom4j.version>