diff --git a/openapi-generator/templates/ruby-client/gemspec.mustache b/openapi-generator/templates/ruby-client/gemspec.mustache
index 6454f619..c5dd6d39 100644
--- a/openapi-generator/templates/ruby-client/gemspec.mustache
+++ b/openapi-generator/templates/ruby-client/gemspec.mustache
@@ -29,12 +29,12 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'faraday', '>= 0.14.0'
   {{/isFaraday}}
   {{^isFaraday}}
-  s.add_runtime_dependency 'typhoeus', '~> 1.0', '>= 1.0.1'
+  s.add_runtime_dependency 'typhoeus', '>= 1.0.1'
   {{/isFaraday}}
-  s.add_runtime_dependency 'json', '~> 2.1', '>= 2.1.0'
-  s.add_runtime_dependency 'link-header-parser', '~> 4.0'
+  s.add_runtime_dependency 'json', '>= 2.1.0'
+  s.add_runtime_dependency 'link-header-parser'
 
-  s.add_development_dependency 'rspec', '~> 3.6', '>= 3.6.0'
+  s.add_development_dependency 'rspec', '>= 3.6.0'
 
   s.files         = `find *`.split("\n").uniq.sort.select { |f| !f.empty? }
   s.test_files    = `find spec/*`.split("\n")