added dependency

.pkgr.yml

@@ -12,8 +12,6 @@ after_install: packaging/hooks/postinstall.sh
 before:
   - cp config/database.yml.pkgr config/database.yml
   - cat config/database.yml
-  - env
-  - gem install sqlite3
 
 env:
   - RAILS_ENV=production

Gemfile

@@ -14,6 +14,7 @@ gem 'json'
 # Gems used only for assets and not required
 # in production environments by default.
 group :assets do
+  gem 'sqlite3'
   gem 'sass-rails' #, github: 'rails/sass-rails'
   gem 'coffee-rails'
   gem 'coffee-script-source'