diff --git a/css-grid.md b/css-grid.md
index 510a3e193..7a0a24a00 100644
--- a/css-grid.md
+++ b/css-grid.md
@@ -1,6 +1,7 @@
 ---
 title: CSS Grid
 category: CSS
+updated: 2018-12-06
 layout: 2017/sheet
 prism_languages: [css]
 ---