diff --git a/CHANGELOG.md b/CHANGELOG.md
index 28686af..0fc3339 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## version 1.3.0 (2017-??-??)
+## version 1.3.0 (2017-05-28)
 
 * Adds `Parsimmon.notFollowedBy(parser)`
 * Adds `parser.notFollowedBy(anotherParser)`