diff --git a/qrpc-test/pom.xml b/qrpc-test/pom.xml
index df3e895..a0392bb 100644
--- a/qrpc-test/pom.xml
+++ b/qrpc-test/pom.xml
@@ -80,7 +80,7 @@
             <dependency>
                 <groupId>org.apache.commons</groupId>
                 <artifactId>commons-collections4</artifactId>
-                <version>4.0</version>
+                <version>4.1</version>
             </dependency>
             <dependency>
                 <groupId>org.apache.zookeeper</groupId>