diff --git a/CHANGELOG.md b/CHANGELOG.md
index 39e9246..8efa068 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,14 +2,14 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
-## [1.0.4] - ?
+## [1.0.4] - 2017-07-26
 ### Fixed
  - [SIGSERVER_PORT is not being parsed correctly from environment variables](https://github.com/dekobon/clamav-mirror/issues/3)
 
 ## [1.0.3] - 2017-07-25
 ### Added
  - Added environment variable configuration support.
- 
+
 ## [1.0.2] - 2017-07-24
 
 ### Added