diff --git a/sidekiq.gemspec b/sidekiq.gemspec
index 7323dac7..8553a722 100644
--- a/sidekiq.gemspec
+++ b/sidekiq.gemspec
@@ -14,11 +14,11 @@ Gem::Specification.new do |gem|
   gem.name          = "sidekiq"
   gem.require_paths = ["lib"]
   gem.version       = Sidekiq::VERSION
-  gem.add_dependency                  'redis', '~> 3'
+  gem.add_dependency                  'redis', '>= 3.0'
   gem.add_dependency                  'redis-namespace'
-  gem.add_dependency                  'connection_pool', '~> 1.0'
-  gem.add_dependency                  'celluloid', '~> 0.13.0'
-  gem.add_dependency                  'multi_json', '~> 1'
+  gem.add_dependency                  'connection_pool', '>= 1.0.0'
+  gem.add_dependency                  'celluloid', '>= 0.13.0'
+  gem.add_dependency                  'multi_json'
   gem.add_development_dependency      'sinatra'
   gem.add_development_dependency      'slim'
   gem.add_development_dependency      'minitest', '~> 4'