diff --git a/pushr-core.gemspec b/pushr-core.gemspec
index afa6fc8..6c46e54 100644
--- a/pushr-core.gemspec
+++ b/pushr-core.gemspec
@@ -22,11 +22,11 @@ Gem::Specification.new do |s|
   s.required_ruby_version = '>= 1.9.3'
 
   s.add_runtime_dependency 'redis', '~> 3.0'
-  s.add_runtime_dependency 'redis-namespace', '1.4.1'
+  s.add_runtime_dependency 'redis-namespace', '~> 1.4'
   s.add_runtime_dependency 'multi_json'
   s.add_runtime_dependency 'connection_pool', '~> 2.0'
   s.add_runtime_dependency 'activemodel'
-  s.add_development_dependency 'rspec', '3.0.0.beta2'
+  s.add_development_dependency 'rspec', '~> 3.0'
   s.add_development_dependency 'guard'
   s.add_development_dependency 'guard-rspec'
   s.add_development_dependency 'mock_redis'