diff --git a/01.curriculum/01.physics-chemistry-biology/01.niv1/08.invisible-world/topic.en.md b/01.curriculum/01.physics-chemistry-biology/01.niv1/08.invisible-world/topic.en.md
index 0bb020607..e3851d42b 100644
--- a/01.curriculum/01.physics-chemistry-biology/01.niv1/08.invisible-world/topic.en.md
+++ b/01.curriculum/01.physics-chemistry-biology/01.niv1/08.invisible-world/topic.en.md
@@ -1,4 +1,6 @@
 ---
 title: 'This world that my senses do not see, revealed by my sensors'
+published: false
+visible: false
 ---