diff --git a/fast_jsonapi.gemspec b/fast_jsonapi.gemspec
index 0e1685b..35ac3a7 100644
--- a/fast_jsonapi.gemspec
+++ b/fast_jsonapi.gemspec
@@ -30,7 +30,7 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency(%q<rspec>, ["~> 3.5.0"])
   gem.add_development_dependency(%q<oj>, ["~> 3.3"])
   gem.add_development_dependency(%q<rspec-benchmark>, ["~> 0.3.0"])
-  gem.add_development_dependency(%q<bundler>, ["~> 2.0"])
+  gem.add_development_dependency(%q<bundler>, [">= 1.0"])
   gem.add_development_dependency(%q<byebug>, [">= 0"])
   gem.add_development_dependency(%q<active_model_serializers>, ["~> 0.10.7"])
   gem.add_development_dependency(%q<sqlite3>, ["~> 1.3"])