diff --git a/samples/OSharp.Demo.Web/packages.config b/samples/OSharp.Demo.Web/packages.config
index d4c1b0f..1efb1d4 100644
--- a/samples/OSharp.Demo.Web/packages.config
+++ b/samples/OSharp.Demo.Web/packages.config
@@ -9,7 +9,7 @@
   <package id="jQuery.Validation" version="1.13.1" targetFramework="net45" />
   <package id="json2" version="1.0.2" targetFramework="net45" />
   <package id="linq.js-jQuery" version="2.2.0.2" targetFramework="net45" />
-  <package id="log4net" version="2.0.3" targetFramework="net45" />
+  <package id="log4net" version="2.0.10" targetFramework="net45" />
   <package id="Microsoft.AspNet.Mvc" version="5.2.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.Razor" version="3.2.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.SignalR.Core" version="2.2.0" targetFramework="net45" />