diff --git a/manifests/developer_environment.pp b/manifests/developer_environment.pp
index 95bf583..984e42b 100644
--- a/manifests/developer_environment.pp
+++ b/manifests/developer_environment.pp
@@ -19,7 +19,7 @@
     provider => 'pear',
   }
   Anchor['php::begin'] -> class { '::php::phpunit':
-    source      => 'https://phar.phpunit.de/phpunit-5.3.4.phar',
+    source      => 'https://phar.phpunit.de/phpunit-5.phar',
     auto_update => false,
     path        => '/usr/bin/phpunit',
   } -> Anchor['php::end']