Rakefile in balboa-0.1.1 vs Rakefile in balboa-0.1.2

@@ -32,10 +32,10 @@
       RUBY_THREAD_VM_STACK_SIZE=64000\
       bundle exec mutant\
         --include lib\
         --require balboa\
         --use rspec\
-        --since master\
+        --since master^\
         --jobs 4 'Balboa*'
     EOS
     system command
     abort unless $CHILD_STATUS.success?
   end