diff --git a/astute.gemspec b/astute.gemspec
index 6979b8dc..4bca8c1b 100644
--- a/astute.gemspec
+++ b/astute.gemspec
@@ -10,7 +10,7 @@ Gem::Specification.new do |s|
   s.authors = ['Mike Scherbakov']
   s.email   = ['mscherbakov@mirantis.com']
 
-  s.add_dependency 'activesupport', '>= 3.0.10'
+  s.add_dependency 'activesupport', '~> 4.1'
   s.add_dependency 'mcollective-client', '>= 2.4.1'
   s.add_dependency 'symboltable', '>= 1.0.2'
   s.add_dependency 'rest-client', '>= 1.6.7'