diff --git a/NEWS b/NEWS
index 0b3aec66a..11f73c8a6 100644
--- a/NEWS
+++ b/NEWS
@@ -3,6 +3,13 @@ For full details, see the git log at: https://github.com/ksh93/ksh
 
 Any uppercase BUG_* names are modernish shell bug IDs.
 
+2021-02-14:
+
+- Due to a deficiency in some UNIX veriants, the 'sleep' built-in command could
+  occasionally sleep for slightly less than the time specified. It now performs
+  an additional check against the system clock to make sure it sleeps at least
+  the given amount of time. Thanks to Lev Kujawski for adding this feature.
+
 2021-02-11:
 
 - Fixed a bug that caused ksh to lose track of all running background jobs if