diff --git a/pom.xml b/pom.xml
index 4a34794..4035e52 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,7 +11,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
         <appengine.version>1.9.56</appengine.version>
-        <gson.version>2.8.1</gson.version>
+        <gson.version>2.8.9</gson.version>
         <hbase.version>2.0.0</hbase.version>
         <jersey.version>2.25.1</jersey.version>
         <jetty.version>9.4.31.v20200723</jetty.version>