diff --git a/capybara.gemspec b/capybara.gemspec
index fe09bc44..a0ced6f2 100644
--- a/capybara.gemspec
+++ b/capybara.gemspec
@@ -22,7 +22,7 @@ Gem::Specification.new do |s|
   s.summary = "Capybara aims to simplify the process of integration testing Rack applications, such as Rails, Sinatra or Merb"
 
   s.add_runtime_dependency("nokogiri", [">= 1.6.7"])
-  s.add_runtime_dependency("mime-types", [">= 3.0"])
+  s.add_runtime_dependency("mime-types", [">= 2.0"])
   s.add_runtime_dependency("rack", [">= 1.6.0"])
   s.add_runtime_dependency("rack-test", [">= 0.6.3"])
   s.add_runtime_dependency("xpath", [">= 2.0", "< 4.0"])
diff --git a/gemfiles/Gemfile.base-versions b/gemfiles/Gemfile.base-versions
index bdbf05b1..3bac4d6c 100644
--- a/gemfiles/Gemfile.base-versions
+++ b/gemfiles/Gemfile.base-versions
@@ -10,7 +10,7 @@ gem 'rack-test', '= 0.6.3'
 gem 'nokogiri', '= 1.6.7'
 gem 'rspec', '= 3.4.0'
 gem 'cucumber', '= 2.3.0'
-gem 'mime-types', '= 3.0'
+gem 'mime-types', '= 2.0'
 gem 'addressable', '2.4.0'
 gem 'json', '< 2.0'
 gem 'rake', '< 11.0'