diff --git a/Gemfile b/Gemfile
index d8c58b3..c1d7a43 100644
--- a/Gemfile
+++ b/Gemfile
@@ -23,7 +23,7 @@ group :test do
   gem 'mock_redis', '~> 0.19'
   gem 'rack-test', '~> 2.0'
   gem 'rspec', '~> 3.6'
-  gem 'simplecov', '~> 0.21.2'
+  gem 'simplecov', '~> 0.22.0'
   gem 'webmock', '~> 3.8'
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 7e7dad5..5711213 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -98,12 +98,12 @@ GEM
     sawyer (0.9.2)
       addressable (>= 2.3.5)
       faraday (>= 0.17.3, < 3)
-    simplecov (0.21.2)
+    simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
-    simplecov_json_formatter (0.1.3)
+    simplecov_json_formatter (0.1.4)
     sinatra (3.1.0)
       mustermann (~> 3.0)
       rack (~> 2.2, >= 2.2.4)
@@ -141,7 +141,7 @@ DEPENDENCIES
   rerun (~> 0.13)
   rspec (~> 3.6)
   rubocop (~> 1.19)
-  simplecov (~> 0.21.2)
+  simplecov (~> 0.22.0)
   sinatra (~> 3.0)
   thin (~> 1.7)
   unicorn (~> 6.0)