diff --git a/CHANGELOG.md b/CHANGELOG.md
index c1bb363..3ccba25 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,12 +4,15 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Unreleased]
+## [0.4.1] - 21-SEP-2018
 ### Added
+- Add codemeta.json
 
 ### Changed
 
 ### Fixed
+- Fix builds in .travis.yml
+- Can't use Python 3.6 type hinting with Python 3.5
 
 ### Removed
 
@@ -114,7 +117,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Added
 - First Release
 
-[Unreleased]: https://github.com/bryanwweber/thermostate/compare/v0.4.0...HEAD
+[0.4.1]: https://github.com/bryanwweber/thermostate/compare/v0.4.0...v0.4.1
 [0.4.0]: https://github.com/bryanwweber/thermostate/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/bryanwweber/thermostate/compare/v0.2.4...v0.3.0
 [0.2.4]: https://github.com/bryanwweber/thermostate/compare/v0.2.3...v0.2.4
diff --git a/paper/codemeta.json b/paper/codemeta.json
index 4c293f8..cfce143 100644
--- a/paper/codemeta.json
+++ b/paper/codemeta.json
@@ -10,7 +10,7 @@
       "affiliation": "University of Connecticut"
     }
   ],
-  "identifier": "https://doi.org/10.5281/zenodo.1432509",
+  "identifier": "https://doi.org/10.5281/zenodo.995682",
   "codeRepository": "https://github.com/bryanwweber/thermostate",
   "datePublished": "2018-09-21",
   "dateModified": "2018-09-21",
@@ -19,5 +19,5 @@
   "keywords": "thermodynamics, engineering, coolprop, pint",
   "license": "BSD",
   "title": "ThermoState",
-  "version": "v0.4.0"
+  "version": "v0.4.1"
 }
diff --git a/thermostate/_version.py b/thermostate/_version.py
index 9708e23..a91c2bc 100644
--- a/thermostate/_version.py
+++ b/thermostate/_version.py
@@ -1,4 +1,4 @@
 """The version of thermohw."""
 
-__version_info__ = (0, 4, 1, 'dev0')  # type: Tuple[int, int, int, str]
+__version_info__ = (0, 4, 1, '')  # type: Tuple[int, int, int, str]
 __version__ = '.'.join([str(v) for v in __version_info__ if str(v)])