diff --git a/hackathon-java-xczhang/panic-buying/pom.xml b/hackathon-java-xczhang/panic-buying/pom.xml
index 3d95975..a03f9c3 100644
--- a/hackathon-java-xczhang/panic-buying/pom.xml
+++ b/hackathon-java-xczhang/panic-buying/pom.xml
@@ -67,7 +67,7 @@
         <dependency>
             <groupId>io.netty</groupId>
             <artifactId>netty-all</artifactId>
-            <version>4.1.42.Final</version>
+            <version>4.1.44.Final</version>
         </dependency>
         <dependency>
             <groupId>redis.clients</groupId>