diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3834db1d..cd5a9150 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 The complete changelog for the Costs to Expect REST API, follows the format defined at https://keepachangelog.com/en/1.0.0/
 
-## [v2.04.0] - 2019-11-xx
+## [v2.04.0] - 2019-11-11
 ### Added
 - We have added a GitHub callout to the top right corner of the API landing page, courtesy of https://github.com/tholman/github-corners.
 
diff --git a/config/api/app/version.php b/config/api/app/version.php
index 1ac9b95a..d496db47 100644
--- a/config/api/app/version.php
+++ b/config/api/app/version.php
@@ -5,7 +5,7 @@
 return [
     'version'=> '2.04.0',
     'prefix' => 'v2',
-    'release_date' => '2019-11-xx',
+    'release_date' => '2019-11-11',
     'changelog' => [
         'api' => '/v2/changelog',
         'markdown' => 'https://github.com/costs-to-expect/api/blob/master/CHANGELOG.md'