diff --git a/deploygate.gemspec b/deploygate.gemspec
index d9c7ef6..230c1fe 100644
--- a/deploygate.gemspec
+++ b/deploygate.gemspec
@@ -36,9 +36,9 @@ POST_INSTALL_MESSAGE
   spec.add_dependency 'net-ping'
 
   # ios build
-  spec.add_dependency 'gym', '~> 1.4.0'
-  spec.add_dependency 'spaceship', '~> 0.19.0'
-  spec.add_dependency 'sigh', '~> 1.2.2'
+  spec.add_dependency 'gym', '~> 1.6.2'
+  spec.add_dependency 'spaceship', '~> 0.23.0'
+  spec.add_dependency 'sigh', '~> 1.4.1'
 
   spec.add_development_dependency "bundler", "~> 1.3"
   spec.add_development_dependency "rake"