diff --git a/aspnetmvc/Diagram/Gridlines.md b/aspnetmvc/Diagram/Gridlines.md
index d0798b79..29d94767 100644
--- a/aspnetmvc/Diagram/Gridlines.md
+++ b/aspnetmvc/Diagram/Gridlines.md
@@ -41,7 +41,7 @@ To show only horizontal/vertical gridlines or to hide gridlines, refer to [Const
 
 ## Appearance
 
-You can customize the appearance of the gridlines by using a set of predefined properties. To explore those properties, refer to [Gridlines](http://help.syncfusion.com/cr/aspnetmvc/Syncfusion.JavaScript.DataVisualization.Models.Diagram.GridLines.html "Gridlines")
+You can customize the appearance of the gridlines by using a set of predefined properties. To explore those properties, refer to [Gridlines](https://help.syncfusion.com/cr/aspnetmvc/Syncfusion.JavaScript.DataVisualization.Models.Diagram.GridLines.html "Gridlines")
 The `HorizontalGridLines` and `VerticalGridLines` properties allow to customize the appearance of the gridlines. The following code example illustrates how to customize the appearance of gridlines.
 
 {% highlight c# %}