diff --git a/cf-uaa-lib.gemspec b/cf-uaa-lib.gemspec
index 58cc267..2e05386 100644
--- a/cf-uaa-lib.gemspec
+++ b/cf-uaa-lib.gemspec
@@ -42,7 +42,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'bundler', '>= 2.2'
   s.add_development_dependency 'rake', '>= 10.3.2', '~> 13.0'
   s.add_development_dependency 'rspec', '>= 2.14.1', '~> 3.9'
-  s.add_development_dependency 'simplecov', '~> 0.22.0'
+  s.add_development_dependency 'simplecov', '~> 1.0.0'
   s.add_development_dependency 'simplecov-rcov', '~> 0.3.0'
   s.add_development_dependency 'ci_reporter', '>= 1.9.2', '~> 2.0'
   s.add_development_dependency 'ci_reporter_rspec', '~> 1.0'