diff --git a/Changelog.md b/Changelog.md
index ba0c15670..74d135373 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -6,6 +6,10 @@ Bug Fixes:
 * The `change` matcher now recognises an object has changed when its instance attributes
   have changed. (Jon Rowe, #1132)
 
+Enhancements:
+
+* Add a special warning when `nil` is passed to `raise_error`. (Phil Pirozhkov, #1143)
+
 ### 3.9.0 / 2019-10-02
 [Full Changelog](http://github.com/rspec/rspec-expectations/compare/v3.8.6...v3.9.0)