diff --git a/protocolize-api/pom.xml b/protocolize-api/pom.xml
index 4e52232..9052fdf 100644
--- a/protocolize-api/pom.xml
+++ b/protocolize-api/pom.xml
@@ -36,7 +36,7 @@
         <dependency>
             <groupId>io.netty</groupId>
             <artifactId>netty-codec</artifactId>
-            <version>4.1.70.Final</version>
+            <version>4.1.133.Final</version>
             <scope>provided</scope>
         </dependency>
         <dependency>