diff --git a/Wox/App.config b/Wox/App.config
index f376f313b..0d43a68ef 100644
--- a/Wox/App.config
+++ b/Wox/App.config
@@ -21,5 +21,6 @@
   </log4net>
   <startup>
     <supportedRuntime version="v2.0.50727"/>
+    <supportedRuntime version="v4.0"/>
   </startup>
 </configuration>