diff --git a/README.md b/README.md
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@@ -128,6 +128,7 @@ required to complete them.
 | [Calorie Counter](./Projects/3-Advanced/Calorie-Counter-App.md)               | Calorie Counter Nutrition App                                       | 3-Advanced |
 | [Chat App](./Projects/3-Advanced/Chat-App.md)                                 | Real-time chat interface                                            | 3-Advanced |
 | [Contribution Tracker App](./Projects/3-Advanced/Contribution-Tracker-App.md) | Track funds donated to charity                                      | 3-Advanced |
+| [Course selling app](./Projects/3-Advanced/Course-selling-app.md)             | create and sell courses                                             | 3-Advanced |
 | [Elevator](./Projects/3-Advanced/Elevator-App.md)                             | Elevator simulator                                                  | 3-Advanced |
 | [Fast Food Simulator](./Projects/3-Advanced/FastFood-App.md)                  | Fast Food Restaurant Simulator                                      | 3-Advanced |
 | [Instagram Clone](./Projects/3-Advanced/Instagram-Clone-App.md)               | A clone of Facebook's Instagram app                                 | 3-Advanced |