diff --git a/CHANGELOG.md b/CHANGELOG.md
index ebc4ca8..6a45210 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ Updates should follow the [Keep a CHANGELOG](https://keepachangelog.com/) princi
 
 ## [Unreleased][unreleased]
 
+## [0.1.16] - 2022-01-26
+
+### Fixed
+
+- Resolved `MAILGUN_URL` API KEY "user" bug.
+
 ## [0.1.15] - 2022-01-25
 
 ### Changed
@@ -114,7 +120,8 @@ Updates should follow the [Keep a CHANGELOG](https://keepachangelog.com/) princi
 
 **Initial release!**
 
-[unreleased]: https://github.com/unleashedtech/dotenv-drupal/compare/0.1.15...main
+[unreleased]: https://github.com/unleashedtech/dotenv-drupal/compare/0.1.16...main
+[0.1.16]: https://github.com/unleashedtech/dotenv-drupal/compare/0.1.15...0.1.16
 [0.1.15]: https://github.com/unleashedtech/dotenv-drupal/compare/0.1.14...0.1.15
 [0.1.14]: https://github.com/unleashedtech/dotenv-drupal/compare/0.1.13...0.1.14
 [0.1.13]: https://github.com/unleashedtech/dotenv-drupal/compare/0.1.12...0.1.13
diff --git a/src/Dotenv.php b/src/Dotenv.php
index f97bfb3..41573b7 100644
--- a/src/Dotenv.php
+++ b/src/Dotenv.php
@@ -166,7 +166,7 @@ public function getConfig(): array
                 'scheme' => $parts['scheme'] ?? 'https',
                 'host' => $parts['host'] ?? 'api.mailgun.net',
             ]);
-            $config['mailgun.settings']['api_key'] = $parts['name'] ?? 'key-1234567890abcdefghijklmnopqrstu';
+            $config['mailgun.settings']['api_key'] = $parts['user'] ?? 'key-1234567890abcdefghijklmnopqrstu';
         }
 
         // Configure Shield if enabled.