diff --git a/netty/jt-808-protocol/jt808-tcp-netty/pom.xml b/netty/jt-808-protocol/jt808-tcp-netty/pom.xml
index 18987f3..3617d54 100644
--- a/netty/jt-808-protocol/jt808-tcp-netty/pom.xml
+++ b/netty/jt-808-protocol/jt808-tcp-netty/pom.xml
@@ -21,7 +21,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
         <!-- test ===== -->