diff --git a/yajl-ruby.gemspec b/yajl-ruby.gemspec
index 16140988..4ad33613 100644
--- a/yajl-ruby.gemspec
+++ b/yajl-ruby.gemspec
@@ -17,11 +17,10 @@ Gem::Specification.new do |s|
   s.required_ruby_version = ">= 1.8.6"
 
   # tests
-  s.add_development_dependency 'rake-compiler', '>= 0.7.5'
-  s.add_development_dependency 'rspec', '~> 3.0'
+  s.add_development_dependency 'rake-compiler'
+  s.add_development_dependency 'rspec'
   # benchmarks
-  s.add_development_dependency 'activesupport', '~> 3.1.2'
+  s.add_development_dependency 'activesupport'
   s.add_development_dependency 'json'
-  s.add_development_dependency "benchmark-memory", "~> 0.1"
+  s.add_development_dependency "benchmark-memory"
 end
-