diff --git a/Gemfile b/Gemfile
index b97661a..f063efe 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,6 +3,6 @@ source 'https://rubygems.org'
 gemspec
 
 group :test do
-  gem 'simplecov', '~> 0.12.0'
-  gem 'coveralls', '~> 0.8.0'
+  gem 'simplecov', '~> 0.16.1'
+  gem 'coveralls', '~> 0.8.22'
 end
diff --git a/tty-editor.gemspec b/tty-editor.gemspec
index cac370b..d58007f 100644
--- a/tty-editor.gemspec
+++ b/tty-editor.gemspec
@@ -6,7 +6,7 @@ Gem::Specification.new do |spec|
   spec.name          = "tty-editor"
   spec.version       = TTY::Editor::VERSION
   spec.authors       = ["Piotr Murach"]
-  spec.email         = [""]
+  spec.email         = ["me@piotrmurach.com"]
 
   spec.summary       = %q{Opens a file or text in the user's preferred editor.}
   spec.description   = %q{Opens a file or text in the user's preferred editor.}
@@ -20,10 +20,10 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 2.0.0'
 
-  spec.add_dependency 'tty-prompt',   '~> 0.18'
+  spec.add_dependency 'tty-prompt',   '~> 0.19'
   spec.add_dependency 'tty-which',    '~> 0.4'
 
-  spec.add_development_dependency 'bundler', '>= 1.5.0', '< 2.0'
-  spec.add_development_dependency 'rake',  '~> 10.0'
+  spec.add_development_dependency 'bundler', '>= 1.5.0'
+  spec.add_development_dependency 'rake'
   spec.add_development_dependency 'rspec', '~> 3.0'
 end