diff --git a/CHANGELOG b/CHANGELOG
index 1ed0bb23..cf39726f 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,4 +1,4 @@
-2018-05-20: 4.1.0
+2018-05-21: 4.1.0
 
 - Many thanks to @imresamu for name translations and Wikidata concordances, @mattbloch
   for MapShaper feature development, and hat tips to @planemad for Wikidata concordances,