diff --git a/Gemfile b/Gemfile
index 58a5fa1..3bfb622 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,6 +8,6 @@ gem "json", "2.4.1" if RUBY_VERSION == "2.0.0"
 gem "yardstick", "~> 0.9.9"
 
 if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new("2.5.0")
-  gem "coveralls_reborn", "~> 0.22.0"
-  gem "simplecov", "~> 0.21.0"
+  gem "coveralls_reborn", "~> 0.28.0"
+  gem "simplecov", "~> 0.22.0"
 end