diff --git a/rest-api/calendar/rest-calendar-java-client/pom.xml b/rest-api/calendar/rest-calendar-java-client/pom.xml
index 00ee666..78a5d05 100644
--- a/rest-api/calendar/rest-calendar-java-client/pom.xml
+++ b/rest-api/calendar/rest-calendar-java-client/pom.xml
@@ -9,7 +9,7 @@
 		<dependency>
 			<groupId>com.google.code.gson</groupId>
 			<artifactId>gson</artifactId>
-			<version>2.3.1</version>
+			<version>2.8.9</version>
 		</dependency>
 	</dependencies>
 	<build>