diff --git a/announcement.gemspec b/announcement.gemspec
index 522d864..0dd5494 100644
--- a/announcement.gemspec
+++ b/announcement.gemspec
@@ -59,7 +59,7 @@ if old_gemfile_text != new_gemfile_text
     Bundler.with_clean_env do
         puts ENV['PWD']
         puts mode
-        system(all_command)
+        exec(all_command)
     end
   end
   a.priority =  2