diff --git a/CHANGELOG.md b/CHANGELOG.md
index 184fb3200e..6fd8630f6d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+Changes in [0.12.3-rc.3](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v0.12.3-rc.3) (2018-04-26)
+===============================================================================================================
+[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.12.3-rc.2...v0.12.3-rc.3)
+
+ * Replace document.origin with window.location.origin
+   [\#1855](https://github.com/matrix-org/matrix-react-sdk/pull/1855)
+
 Changes in [0.12.3-rc.2](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v0.12.3-rc.2) (2018-04-25)
 ===============================================================================================================
 [Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.12.3-rc.1...v0.12.3-rc.2)