diff --git a/netty/pom.xml b/netty/pom.xml
index 31b97c9..cb0315b 100644
--- a/netty/pom.xml
+++ b/netty/pom.xml
@@ -24,7 +24,7 @@
 		<dependency>
 			<groupId>com.fasterxml.jackson.core</groupId>
 			<artifactId>jackson-databind</artifactId>
-			<version>RELEASE</version>
+			<version>2.12.6.1</version>
 		</dependency>
 		<dependency>
 			<groupId>com.fasterxml.jackson.module</groupId>