diff --git a/graph_api/pom.xml b/graph_api/pom.xml
index b26d8bb..7d82570 100644
--- a/graph_api/pom.xml
+++ b/graph_api/pom.xml
@@ -24,7 +24,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.5</version>
+            <version>2.8.9</version>
         </dependency>
         <dependency>
             <groupId>org.apache.flink</groupId>