diff --git a/ipaddress.gemspec b/ipaddress.gemspec
index dfcf8d59ff6b3df45990e5746f6d175c62486a91..2f66ccfef1030743e71f14392aa414ff2b33f863 100644
--- a/ipaddress.gemspec
+++ b/ipaddress.gemspec
@@ -21,6 +21,6 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_development_dependency "bundler", "~> 1.6"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "bundler"
+  spec.add_development_dependency "rake"
 end