diff --git a/mrbgem.rake b/mrbgem.rake
index 356872e..cdb9dca 100644
--- a/mrbgem.rake
+++ b/mrbgem.rake
@@ -3,6 +3,5 @@ MRuby::Gem::Specification.new('mruby-stringio') do |spec|
   spec.author  = 'ksss <co000ri@gmail.com>'
   spec.summary = 'StringIO class'
 
-  spec.add_dependency('mruby-print', core: 'mruby-print')
   spec.add_dependency('mruby-enumerator', core: 'mruby-enumerator')
 end