diff --git a/maths_discretes/README.md b/maths_discretes/README.md
index f3e8500..94c5fe0 100644
--- a/maths_discretes/README.md
+++ b/maths_discretes/README.md
@@ -23,7 +23,7 @@
    polynomiales.
 
 ## Divers
-[ds 2023](./ds/ds_2023.pdf)
+[ds 2025](./ds/ds.pdf)