diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/40.n4/10.brainstorming/01.p1/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/40.n4/10.brainstorming/01.p1/textbook.fr.md
index 236660519..ab6229a7c 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/40.n4/10.brainstorming/01.p1/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/40.n4/10.brainstorming/01.p1/textbook.fr.md
@@ -9,7 +9,7 @@ lessons:
 ---
 
 
-#### Définir les outils mathématiques requis au niveau 3
+#### Définir les outils mathématiques requis au niveau 4
 
 ### Proposition 1