diff --git a/Chapter_09_Pi4J/javafx-pi4j-serial/pom.xml b/Chapter_09_Pi4J/javafx-pi4j-serial/pom.xml
index 5287fdf..05f3ead 100644
--- a/Chapter_09_Pi4J/javafx-pi4j-serial/pom.xml
+++ b/Chapter_09_Pi4J/javafx-pi4j-serial/pom.xml
@@ -30,7 +30,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.13.4.1</version>
+            <version>2.13.4.2</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>