diff --git a/pathspec.gemspec b/pathspec.gemspec
index d7a758e..efcae6f 100644
--- a/pathspec.gemspec
+++ b/pathspec.gemspec
@@ -27,5 +27,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rake', '~> 13.0'
   s.add_development_dependency 'rspec', '~> 3.10'
   s.add_development_dependency 'rubocop', '~> 1.63.0'
-  s.add_development_dependency 'simplecov', '~> 0.21'
+  s.add_development_dependency 'simplecov', '~> 1.0'
 end