diff --git a/History.md b/History.md
index 137a78bc9..1a2f3dc6c 100644
--- a/History.md
+++ b/History.md
@@ -6,6 +6,11 @@
 * Fixed issue [#895](https://github.com/jakubpawlowicz/clean-css/issues/895) - ignoring specific styles.
 * Fixed issue [#947](https://github.com/jakubpawlowicz/clean-css/issues/947) - selector based filtering.
 
+[4.1.9 / 2017-xx-xx](https://github.com/jakubpawlowicz/clean-css/compare/v4.1.8...4.1)
+==================
+
+* Fixed issue [#971](https://github.com/jakubpawlowicz/clean-css/issues/971) - edge case in removing unused at rules.
+
 [4.1.8 / 2017-09-02](https://github.com/jakubpawlowicz/clean-css/compare/v4.1.7...v4.1.8)
 ==================