diff --git a/CHANGELOG-4.x.md b/CHANGELOG-4.x.md
index ff51678..a3cc50f 100644
--- a/CHANGELOG-4.x.md
+++ b/CHANGELOG-4.x.md
@@ -2,6 +2,14 @@
 
 This changelog references the relevant changes (bug and security fixes) done to `orchestra/asset`.
 
+## 4.0.1
+
+Released: 2020-02-27
+
+### Fixes
+
+* Ensure that CSS extension should match as `css` when it contain extra attributes. ([#17](https://github.com/orchestral/asset/pull/17)) 
+
 ## 4.0.0
 
 Released: 2019-08-30