diff --git a/CHANGES.md b/CHANGES.md
index e851ce34..bb76d79b 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,4 +1,4 @@
-Version 3.1.0 released 2022-08-21
+Version 3.1.0 released 2022-08-13
 
 * Leading and trailing whitespace in header values are now trimmed
   for better RFC 7230 compliance.