diff --git a/.fixtures.yml b/.fixtures.yml
index 782b316a4..af20848b4 100644
--- a/.fixtures.yml
+++ b/.fixtures.yml
@@ -1,7 +1,9 @@
 fixtures:
   repositories:
     'cinder': 'git://github.com/stackforge/puppet-cinder.git'
-    'concat': 'git://github.com/puppetlabs/puppetlabs-concat.git'
+    'concat':
+      'repo': 'git://github.com/puppetlabs/puppetlabs-concat.git'
+      'ref': '1.2.1'
     'inifile':  'git://github.com/puppetlabs/puppetlabs-inifile'
     'keystone': 'git://github.com/stackforge/puppet-keystone.git'
     'mysql': 'git://github.com/puppetlabs/puppetlabs-mysql.git'