diff --git a/hash_sample.gemspec b/hash_sample.gemspec
index b56a9e2..c2b3340 100644
--- a/hash_sample.gemspec
+++ b/hash_sample.gemspec
@@ -13,7 +13,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency "codecov", "~> 0.2"
   s.add_development_dependency "rspec", "~> 3.5"
   s.add_development_dependency "rspec-simplecov", "~> 0.2"
-  s.add_development_dependency "simplecov", "~> 0.12"
+  s.add_development_dependency "simplecov", "~> 1.1"
 
   s.add_development_dependency "rake", "~> 13"
   s.add_development_dependency "reek", "~> 6"