diff --git a/Rest API (Spring Boot)/pmtool/pom.xml b/Rest API (Spring Boot)/pmtool/pom.xml
index ac91519..4a6c3f7 100644
--- a/Rest API (Spring Boot)/pmtool/pom.xml	
+++ b/Rest API (Spring Boot)/pmtool/pom.xml	
@@ -45,7 +45,7 @@
 		<dependency>
 			<groupId>com.google.code.gson</groupId>
 			<artifactId>gson</artifactId>
-			<version>2.8.6</version>
+			<version>2.8.9</version>
 		</dependency>
 
 		<dependency>