diff --git a/ch24/ch24-tcc-rest/tcc-coordinator-atomikos/pom.xml b/ch24/ch24-tcc-rest/tcc-coordinator-atomikos/pom.xml
index a22ca3d9..2e059166 100644
--- a/ch24/ch24-tcc-rest/tcc-coordinator-atomikos/pom.xml
+++ b/ch24/ch24-tcc-rest/tcc-coordinator-atomikos/pom.xml
@@ -44,7 +44,7 @@
         <dependency>
             <groupId>io.netty</groupId>
             <artifactId>netty-handler</artifactId>
-            <version>4.1.27.Final</version>
+            <version>4.1.46.Final</version>
         </dependency>
         <dependency>
             <groupId>org.apache.cxf</groupId>