diff --git a/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/01.plane-refracting-surface/04.plane-refracting-surface-parallel-1/default.fr.md b/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/01.plane-refracting-surface/04.plane-refracting-surface-parallel-1/default.fr.md
index 5f25d7fed..8862a5460 100644
--- a/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/01.plane-refracting-surface/04.plane-refracting-surface-parallel-1/default.fr.md
+++ b/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/01.plane-refracting-surface/04.plane-refracting-surface-parallel-1/default.fr.md
@@ -1,5 +1,7 @@
 ---
 title: 'nouveau cours : parallèle 1'
+published: false
+visible: false
 hero_classes: ''
 hero_image: ''
 content: