diff --git a/grape-active_model_serializers.gemspec b/grape-active_model_serializers.gemspec
index a7d216c..f4ff617 100644
--- a/grape-active_model_serializers.gemspec
+++ b/grape-active_model_serializers.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |gem|
   gem.version       = Grape::ActiveModelSerializers::VERSION
 
   gem.add_dependency "grape", "~> 0.3"
-  gem.add_dependency "active_model_serializers", "~> 0.8.0"
+  gem.add_dependency "active_model_serializers", ">= 0.8.1"
 
   gem.add_development_dependency "activerecord"
   gem.add_development_dependency "rspec", "~> 2.12.0"