diff --git a/05-naughty-or-nice/NaughtyOrNiceMvc/NaughtyOrNiceMvc.csproj b/05-naughty-or-nice/NaughtyOrNiceMvc/NaughtyOrNiceMvc.csproj
old mode 100755
new mode 100644
index 139b14a..1b3b83c
--- a/05-naughty-or-nice/NaughtyOrNiceMvc/NaughtyOrNiceMvc.csproj
+++ b/05-naughty-or-nice/NaughtyOrNiceMvc/NaughtyOrNiceMvc.csproj
@@ -11,7 +11,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Azure.WebJobs.Extensions.Storage" Version="3.0.10" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
     <PackageReference Include="WindowsAzure.Storage" Version="9.3.3" />
   </ItemGroup>