diff --git a/discovery/pom.xml b/discovery/pom.xml
index e195af2..6a3c8a9 100644
--- a/discovery/pom.xml
+++ b/discovery/pom.xml
@@ -32,7 +32,7 @@
     
     <properties>
         <netty.version>4.1.12.Final</netty.version>
-        <gson.version>2.8.1</gson.version>
+        <gson.version>2.8.9</gson.version>
     </properties>
     
     <modules>