diff --git a/test-server/pom.xml b/test-server/pom.xml
index 228b5dd..f47d3ad 100644
--- a/test-server/pom.xml
+++ b/test-server/pom.xml
@@ -29,7 +29,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.5</version>
+            <version>2.8.9</version>
         </dependency>
 
         <dependency>