diff --git a/README.md b/README.md
index b3cc5fd..0d33b18 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,7 @@ Teaching assistant:
 |              |   |  2020 recordings: [linear programming](https://vimeo.com/470341870/615ef20e80), [MILP](https://vimeo.com/470525624/7fdaadad42) <br> [Python notebooks](notebooks/) |
 |              |   |  Presentation of Assignment 3 by students. |
 | December 6   | 10 | [From real-time control to microgrid sizing ](https://github.com/bcornelusse/ELEN0445-microgrids/blob/master/pdf/20211124_microgrids_optimization.pdf) |
-|              |    | Assignment 4 statement ([description](pdf/HW4/MG_HW4_2024.pdf) and [files](pdf/HW4/HW4_2023.zip)) |
+|              |    | Assignment 4 statement ([description](pdf/HW4/MG_HW4_2023.pdf) and [files](pdf/HW4/HW4_2023.zip)) |
 | December 13  | 11 | End of microgrid optimization module. |
 |              |    | Q&A assignment 4. |
 | December 20  | 12 | If needed |