HBASE-19247 update netty version
diff --git a/hbase-shaded-netty/pom.xml b/hbase-shaded-netty/pom.xml
index 9726c68..8f915f2 100644
--- a/hbase-shaded-netty/pom.xml
+++ b/hbase-shaded-netty/pom.xml
@@ -144,7 +144,7 @@
     <dependency>
       <groupId>io.netty</groupId>
       <artifactId>netty-all</artifactId>
-      <version>4.1.12.Final</version>
+      <version>4.1.17.Final</version>
     </dependency>
   </dependencies>
 </project>