diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9aeab6b..b53e525 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## (unreleased)
+## 1.31 (2025-11-01)
 
   * Remove support for Python 3.8 and 3.9
   * Remove timezone support