diff --git a/index.md b/index.md
index 0b5ab079..b72942f3 100644
--- a/index.md
+++ b/index.md
@@ -1,6 +1,6 @@
 ---
 layout: page
-since: (from 2015-12-27 to 2016-02-21)
+since: (from 2015-12-28 to 2016-02-22)
 ---
 
 ## Core