diff --git a/ruby-puppetdb.gemspec b/ruby-puppetdb.gemspec
index 1f9d49a..bcad169 100644
--- a/ruby-puppetdb.gemspec
+++ b/ruby-puppetdb.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |s|
 
   s.add_dependency 'json'
   s.add_dependency 'chronic'
-  s.add_dependency 'puppet', '>= 3.0.0', '< 6.0.0'
+  s.add_dependency 'puppet', '>= 3.0.0', '< 8.0.0'
   s.add_development_dependency 'rspec', '~> 3.5'
   s.add_development_dependency 'rspec-expectations', '~> 3.5'
   s.add_development_dependency 'rspec-puppet', '~> 2.4'