diff --git a/hw12-webserver/pom.xml b/hw12-webserver/pom.xml
index 2a7d128..24dc4b7 100644
--- a/hw12-webserver/pom.xml
+++ b/hw12-webserver/pom.xml
@@ -21,7 +21,7 @@
         <assertj-core.version>3.14.0</assertj-core.version>
         <freemarker.version>2.3.28</freemarker.version>
         <jetty.version>9.4.26.v20200117</jetty.version>
-        <gson.version>2.8.5</gson.version>
+        <gson.version>2.8.9</gson.version>
     </properties>
 
     <dependencies>