diff --git a/CHANGELOG.md b/CHANGELOG.md
index 612437929298e18624c5d170b790075909a6e7c6..ddbd703b36f04a438a61bcc14338310d13c0ef43 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # All notable changes will be documented in this file
 
+## [1.0.3] 2020-11-23
+Version 1.0.4 release of bilby
+
+### Added
+- Added a chirp-mass and mass-ratio prior which are uniform in component masses (!891)
+
+### Changes
+- Fixed issue in the CI
+
 ## [1.0.3] 2020-10-23
 
 Version 1.0.3 release of bilby
diff --git a/setup.py b/setup.py
index daf2db2fc7252f02126b564695a821e93e2ee7c4..0882ade9b33e1477ff5ffccad7ee8a22be36fecc 100644
--- a/setup.py
+++ b/setup.py
@@ -64,7 +64,7 @@ def readfile(filename):
     return filecontents
 
 
-VERSION = '1.0.3'
+VERSION = '1.0.4'
 version_file = write_version_file(VERSION)
 long_description = get_long_description()