diff --git a/pact-provider-verifier.gemspec b/pact-provider-verifier.gemspec
index 02a8e43..b2d89b8 100644
--- a/pact-provider-verifier.gemspec
+++ b/pact-provider-verifier.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |gem|
   gem.license       = 'MIT'
 
   gem.add_runtime_dependency 'rspec', '~> 3.5'
-  gem.add_runtime_dependency 'pact', '~> 1.55'
+  gem.add_runtime_dependency 'pact', '~> 1.55', '< 1.58'
   gem.add_runtime_dependency 'pact-message', '~>0.5'
   gem.add_runtime_dependency 'faraday', '>= 0.9.0', '<= 2.0'
   gem.add_runtime_dependency 'faraday_middleware', '>= 0.10', '<= 2.0'