NO-JIRA: Upgrade netty test dependency to version 4.1.28.Final
diff --git a/pom.xml b/pom.xml
index b30f366..ef44cb8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -129,7 +129,7 @@
     <!-- test dependency version numbers -->
     <junit-version>4.11</junit-version>
     <mockito-version>1.9.5</mockito-version>
-    <netty-version>4.1.24.Final</netty-version>
+    <netty-version>4.1.28.Final</netty-version>
     <hamcrest-version>1.3</hamcrest-version>
     <maven-core-version>3.5.0</maven-core-version>
     <maven-resolver-version>1.0.3</maven-resolver-version>