csb.gemspec in csb-0.2.0 vs csb.gemspec in csb-0.2.1

@@ -20,10 +20,10 @@
   end
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "rails", "~> 5.2.0"
+  spec.add_dependency "rails", ">= 5.2.0"
   spec.add_dependency "csv"
 
   spec.add_development_dependency "bundler", "~> 2.0"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.0"