diff --git a/pom.xml b/pom.xml
index 9c51629..9220aaf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -128,7 +128,7 @@
 
     <!-- test dependency version numbers -->
     <junit-version>4.12</junit-version>
-    <mockito-version>2.22.0</mockito-version>
+    <mockito-version>2.28.2</mockito-version>
     <netty-version>4.1.32.Final</netty-version>
     <hamcrest-version>2.1</hamcrest-version>
     <maven-core-version>3.5.4</maven-core-version>