diff --git a/acts_as_geocodable.gemspec b/acts_as_geocodable.gemspec
index a1885de..b989d10 100644
--- a/acts_as_geocodable.gemspec
+++ b/acts_as_geocodable.gemspec
@@ -19,8 +19,8 @@ Gem::Specification.new do |spec|
   spec.files      = `git ls-files -z`.split("\x0")
   spec.test_files = spec.files.grep(/^spec/)
 
-  spec.add_dependency "graticule", "~> 2.4.0"
-  spec.add_dependency "rails", ">= 3", ">= 4", ">= 5"
+  spec.add_dependency "graticule", "~> 2.5.0"
+  spec.add_dependency "rails"#, ">= 3", "< 6.0"
 
   spec.add_development_dependency "bundler"
   spec.add_development_dependency "rake"