diff --git a/dubbo-dependencies-bom/pom.xml b/dubbo-dependencies-bom/pom.xml
index c43e6f0ebe..71d8f8cdc9 100644
--- a/dubbo-dependencies-bom/pom.xml
+++ b/dubbo-dependencies-bom/pom.xml
@@ -96,7 +96,7 @@
         <javassist_version>3.29.2-GA</javassist_version>
         <bytebuddy.version>1.14.3</bytebuddy.version>
         <netty_version>3.2.10.Final</netty_version>
-        <netty4_version>4.1.87.Final</netty4_version>
+        <netty4_version>4.1.91.Final</netty4_version>
         <mina_version>2.2.1</mina_version>
         <grizzly_version>2.4.4</grizzly_version>
         <httpclient_version>4.5.14</httpclient_version>