diff --git a/Gemfile.lock b/Gemfile.lock
index d0ae790..1c383c3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,7 @@ PATH
   remote: .
   specs:
     i18n-country-translations (1.2.2)
-      i18n (~> 0.5)
+      i18n (>= 0.5, < 2.0)
       railties (>= 3.0)
 
 GEM
@@ -38,13 +38,15 @@ GEM
     addressable (2.3.6)
     arel (3.0.3)
     builder (3.0.4)
+    concurrent-ruby (1.1.10)
     crack (0.4.2)
       safe_yaml (~> 1.0.0)
     diff-lcs (1.2.5)
     docile (1.1.5)
     erubis (2.7.0)
     hike (1.2.3)
-    i18n (0.6.11)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     i18n-spec (0.5.2)
       iso
     iso (0.2.1)
diff --git a/i18n-country-translations.gemspec b/i18n-country-translations.gemspec
index a1064b3..1cf2f4f 100644
--- a/i18n-country-translations.gemspec
+++ b/i18n-country-translations.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |s|
   s.require_path = 'lib'
   s.platform     = Gem::Platform::RUBY
 
-  s.add_dependency('i18n', '~> 0.5')
+  s.add_dependency('i18n', '>= 0.5', '< 2.0')
   s.add_dependency "railties", '>= 3.0'
   s.add_development_dependency "rails", "~> 3.0"
   s.add_development_dependency "rspec-rails"