hiera-gpg incompatible with PE 3.0?

[aaron-grewell]

After installing the gem for hiera-gpg-1.1.0 and enabling it in hiera.yaml on my new PE 3 server I see the following in my system logs: puppet-master[20170]: hiera(): Cannot load backend gpg: Could not find hiera (>= 0.2.0) amongst [addressable-2.3.5, arr-pm-0.0.8, backports-3.3.3, bigdecimal-1.1.0, builder-3.0.0, cabin-0.6.1, childprocess-0.3.9, clamp-0.6.1, deep_merge-1.0.0, excon-0.14.1, ffi-1.9.0, fog-1.5.0, formatador-0.2.0, fpm-0.4.40, ftw-0.0.34, gpgme-2.0.2, guid-0.1.1, hiera-gpg-1.1.0, http_parser.rb-0.5.3, io-console-0.3, json-1.8.0, json-1.5.5, json_pure-1.8.0, mime-types-1.16, minitest-2.5.1, multi_json-1.0.3, net-scp-1.0.4, net-ssh-2.1.4, nokogiri-1.5.0, rack-1.4.5, rake-0.9.2.2, rbvmomi-1.3.0, rdoc-3.9.5, ruby-hmac-0.4.0, trollop-1.16.2]

I've been using hiera-gpg for quite a while an older version of PE without any issues, but the new pe-hiera package puts its contents in PE's site_ruby. The gem appears to be looking for it in the gems directory instead. Can hiera-gpg be configured to search both?