diff --git a/Chapter06/chapter6_source/chapter6_client/pom.xml b/Chapter06/chapter6_source/chapter6_client/pom.xml
index 2ba7317..5c66df2 100644
--- a/Chapter06/chapter6_source/chapter6_client/pom.xml
+++ b/Chapter06/chapter6_source/chapter6_client/pom.xml
@@ -32,7 +32,7 @@
 	<dependency>
 	    <groupId>com.fasterxml.jackson.core</groupId>
 	    <artifactId>jackson-databind</artifactId>
-	    <version>2.9.0</version>
+	    <version>2.12.7.1</version>
 	</dependency>
 	<!-- https://mvnrepository.com/artifact/com.aol.simplereact/cyclops-react -->
 	<dependency>