diff --git a/hw31-multiprocess/messagesystem/pom.xml b/hw31-multiprocess/messagesystem/pom.xml
index 1691f01..72e9f92 100644
--- a/hw31-multiprocess/messagesystem/pom.xml
+++ b/hw31-multiprocess/messagesystem/pom.xml
@@ -25,7 +25,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.6</version>
+            <version>2.8.9</version>
         </dependency>
         <dependency>
             <groupId>com.h2database</groupId>