diff --git a/CHANGELOG.md b/CHANGELOG.md
index 13f45c16..468f1426 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 3.1.2 (released 2014-02-26)
+
+* Support Authorization being an environment variable. [See more](http://fortrabbit.com/docs/essentials/quirks-and-constraints#authorization-header)
+
 ## 3.1.1 (released 2013-12-05)
 
 * Normalize headers when `getallheaders()` is available (Issues #108 and #114)