diff --git a/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/01.new-course-main/textbook.es.md b/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/01.new-course-main/textbook.es.md
index 1a131d64c..b43652c4a 100644
--- a/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/01.new-course-main/textbook.es.md
+++ b/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/03.lens/01.new-course-main/textbook.es.md
@@ -1,5 +1,7 @@
 ---
 title: 'nuevo curso: principal'
+published: false
+visible: false
 ---
 
 nuevo curso: principal
\ No newline at end of file