diff --git a/FinalProject/backend/src/main/webapp/WEB-INF/appengine-web.xml b/FinalProject/backend/src/main/webapp/WEB-INF/appengine-web.xml
index f0134beac..bbe103100 100644
--- a/FinalProject/backend/src/main/webapp/WEB-INF/appengine-web.xml
+++ b/FinalProject/backend/src/main/webapp/WEB-INF/appengine-web.xml
@@ -3,7 +3,7 @@
     <application>myApplicationId</application>
     <version>1</version>
     <threadsafe>true</threadsafe>
-
+    <runtime>java8</runtime>
     <system-properties>
         <property name="java.util.logging.config.file" value="WEB-INF/logging.properties"/>
     </system-properties>