diff --git a/pronto.gemspec b/pronto.gemspec
index 171ded81..ba9ab49f 100644
--- a/pronto.gemspec
+++ b/pronto.gemspec
@@ -54,6 +54,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency('rspec-its', '~> 1.2')
   s.add_development_dependency('rspec-expectations', '~> 3.4')
   s.add_development_dependency('rubocop', '~> 0.58')
-  s.add_development_dependency('simplecov', '~> 0.14', '!= 0.18.0', '!= 0.18.1', '!= 0.18.2', '!= 0.18.3', '!= 0.18.4',
+  # Enforces a rubocop version that is supported by CodeClimate, they support 0.17.x or >= 0.20
+  s.add_development_dependency('simplecov', '~> 0.17', '!= 0.18.0', '!= 0.18.1', '!= 0.18.2', '!= 0.18.3', '!= 0.18.4',
                                '!= 0.18.5', '!= 0.19.0', '!= 0.19.1')
 end