diff --git a/README.md b/README.md
index 4071961e..81415dd8 100644
--- a/README.md
+++ b/README.md
@@ -12,8 +12,8 @@ Looking for maintainers. See https://github.com/fabn/activeadmin-globalize/issue
 ## Installation
 
 Current released version on rubygems is `1.0.0.pre`, I won't call it 1.0.0 until some issues has been solved, 
-but, as reported in [this PR](https://github.com/fabn/activeadmin-globalize/pull/25) it should work with both
-AA 1.0.0 and AA 1.1.0. 
+but, as reported in [this PR](https://github.com/fabn/activeadmin-globalize/pull/25) it should work with
+AA 1.x.x.
 
 Current version targets Rails 4 and greater and ActiveAdmin >= 1.0.0.
 
diff --git a/activeadmin-globalize.gemspec b/activeadmin-globalize.gemspec
index ca5a02ab..e21a1875 100644
--- a/activeadmin-globalize.gemspec
+++ b/activeadmin-globalize.gemspec
@@ -15,7 +15,7 @@ Gem::Specification.new do |s|
 
   s.files = Dir['{app,config,db,lib}/**/*'] + %w(MIT-LICENSE README.md)
 
-  s.add_dependency 'activeadmin', '>= 1.0', '< 1.2'
+  s.add_dependency 'activeadmin', '>= 1.0', '< 2.0'
   # Try to support rails from 3.2 up to 4.2.x
   s.add_dependency 'globalize', '>= 3.1.0', '< 6.0'