diff --git a/week16/IoTCounter/basic/basic/pom.xml b/week16/IoTCounter/basic/basic/pom.xml
index 7e19403..fd6cff6 100644
--- a/week16/IoTCounter/basic/basic/pom.xml
+++ b/week16/IoTCounter/basic/basic/pom.xml
@@ -33,7 +33,7 @@
 		<dependency>
 			<groupId>com.google.code.gson</groupId>
 			<artifactId>gson</artifactId>
-			<version>2.8.0</version>
+			<version>2.8.9</version>
 		</dependency>
     <dependency>
       <groupId>junit</groupId>