diff --git a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/40.n3/20.fr/10.main/textbook.fr.md b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/40.n3/20.fr/10.main/textbook.fr.md
index d1ece6231..dc7afd922 100644
--- a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/40.n3/20.fr/10.main/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/40.n3/20.fr/10.main/textbook.fr.md
@@ -7,7 +7,7 @@ lessons:
     - slug: mecanique-classique-n3-linear
       order: 1
     - slug: mecanique-classique-123-panorama
-      order: 3
+      order: 1
     - slug: mecanique-classique-234-panorama
       order: 2
     - slug: classical-mechanics-n3-exchange