diff --git a/manifests/puppet/apt_config.pp b/manifests/puppet/apt_config.pp
index 2d82af6f..ff93d1b9 100644
--- a/manifests/puppet/apt_config.pp
+++ b/manifests/puppet/apt_config.pp
@@ -1,21 +1,23 @@
 # Configure APT for puppet backported packages
 
 class profile::puppet::apt_config {
   if $::lsbdistcodename == 'jessie' {
     $pinned_packages = [
       'facter',
+      'hiera',
       'puppet',
       'puppet-common',
-      'puppetmaster-passenger',
-      'puppetmaster-common',
       'puppetmaster',
+      'puppetmaster-common',
+      'puppetmaster-passenger',
+      'ruby-deep-merge',
     ]
 
     ::apt::pin {'puppet':
       explanation => 'Pin puppet dependencies to backports',
       codename    => 'jessie-backports',
       packages    => $pinned_packages,
       priority    => 990,
     }
   }
 }