diff --git a/CHANGELOG.md b/CHANGELOG.md
index acdfc49a..081d306f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.1.37] - 2021-01-07
+
 ### Changed
 - Changed error handlers and handling of undefined constants for php8-compatibility (set $errcontext argument optional) https://github.com/smarty-php/smarty/issues/605
 - Changed expected error levels in unit tests for php8-compatibility