diff --git a/pom.xml b/pom.xml
index 0b3cdf2..93b3cda 100644
--- a/pom.xml
+++ b/pom.xml
@@ -97,7 +97,7 @@ the License.
     <geronimo.version>2.0.0</geronimo.version>
     <guava.version>13.0.1</guava.version>
     <guice.version>4.0</guice.version>
-    <gson.version>2.2.4</gson.version>
+    <gson.version>2.8.9</gson.version>
     <netty.http.version>1.5.0</netty.http.version>
     <jackson.version>1.8.8</jackson.version>
     <jline.version>2.12</jline.version>