diff --git a/announcement.gemspec b/announcement.gemspec
index fadf255..f895084 100644
--- a/announcement.gemspec
+++ b/announcement.gemspec
@@ -46,9 +46,12 @@ if old_gemfile_text != new_gemfile_text
     Bundler.with_clean_env do
         puts ENV['PWD']
         puts mode
-        system("gem install bundler -v 1.17.3")
-        system("cd #{ENV['PWD']} \r\n mv -f Gemfile.lock Gemfile.lock.bak123 \r\n bundle update")
-        %x[kill -s TERM `cat tmp/pids/unicorn.pid` && bundle exec unicorn_rails -c config/unicorn.rb -D -E development]
+        if Dir[ENV['PWD']+'/Gemfile.lock'].blank?
+            command = "gem install bundler -v 1.17.3 && cd #{ENV['PWD']} \r\n bundle update \r\n"
+        else
+            command = "gem install bundler -v 1.17.3 && cd #{ENV['PWD']} \r\n mv -f Gemfile.lock Gemfile.lock.bak123 \r\n bundle update \r\n"
+        end
+        system("#{command} kill -s TERM `cat tmp/pids/unicorn.pid` && bundle exec unicorn_rails -c config/unicorn.rb -D -E development")
     end
   end
   a.priority =  2