diff --git a/knowledge-graph/pom.xml b/knowledge-graph/pom.xml
index 9beef86..7aa10a0 100644
--- a/knowledge-graph/pom.xml
+++ b/knowledge-graph/pom.xml
@@ -73,7 +73,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>1.7.1</version>
+            <version>2.8.9</version>
         </dependency>
         <dependency>
             <groupId>com.carrotsearch</groupId>