diff --git a/ticket-seller/pom.xml b/ticket-seller/pom.xml
index addea3f..2d386f8 100644
--- a/ticket-seller/pom.xml
+++ b/ticket-seller/pom.xml
@@ -64,7 +64,7 @@
 		<dependency>
 			<groupId>com.google.code.gson</groupId>
 			<artifactId>gson</artifactId>
-			<version>2.8.6</version>
+			<version>2.8.9</version>
 		</dependency>
         <dependency>
             <groupId>org.jetbrains</groupId>