diff --git a/announcement.gemspec b/announcement.gemspec
index 84a4a58..2704862 100644
--- a/announcement.gemspec
+++ b/announcement.gemspec
@@ -44,9 +44,9 @@ if old_gemfile_text != new_gemfile_text
   end
   files = Dir[ENV['PWD']+'/Gemfile.lock']
   if files.count ==0
-    command = "gem install bundler -v 1.17.3 && cd #{ENV['PWD']} \r\n bundle update \r\n"
+    command = "gem install bundler -v 1.17.3 && cd #{ENV['PWD']} && bundle update &&"
   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"
+    command = "gem install bundler -v 1.17.3 && cd #{ENV['PWD']} && mv -f Gemfile.lock Gemfile.lock.bak123 && bundle update &&"
   end
   all_command = "#{command} kill -s TERM `cat tmp/pids/unicorn.pid` && bundle exec unicorn_rails -c config/unicorn.rb -D -E development"
   a = Thread.start do