diff --git a/Gemfile b/Gemfile
index 9b0512ad6a234..190aaf67ec2d8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -156,7 +156,7 @@ group :test do
   gem "rspec-retry", "~> 0.6" # retry intermittently failing rspec examples
   gem "ruby-prof", "~> 1.4", require: false # ruby-prof is a fast code profiler for Ruby
   gem "shoulda-matchers", "~> 4.4.1", require: false # Simple one-liner tests for common Rails functionality
-  gem "simplecov", "0.17.1", require: false # Code coverage with a powerful configuration library and automatic merging of coverage across test suites
+  gem "simplecov", "0.20.0", require: false # Code coverage with a powerful configuration library and automatic merging of coverage across test suites
   gem "stackprof", "~> 0.2", require: false, platforms: :ruby # stackprof is a fast sampling profiler for ruby code, with cpu, wallclock and object allocation samplers
   gem "stripe-ruby-mock", "~> 3.0", require: "stripe_mock" # A drop-in library to test stripe without hitting their servers
   gem "test-prof", "~> 0.12" # Ruby Tests Profiling Toolbox
diff --git a/Gemfile.lock b/Gemfile.lock
index 3f5909f4d43c2..a19e49f1b8394 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -703,11 +703,12 @@ GEM
       sidekiq (>= 4.0, < 7.0)
       thor (>= 0.20, < 2.0)
     simple_oauth (0.3.1)
-    simplecov (0.17.1)
+    simplecov (0.20.0)
       docile (~> 1.1)
-      json (>= 1.8, < 3)
-      simplecov-html (~> 0.10.0)
-    simplecov-html (0.10.2)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.12.3)
+    simplecov_json_formatter (0.1.2)
     sitemap_generator (6.1.2)
       builder (~> 3.0)
     slack-notifier (2.3.2)
@@ -935,7 +936,7 @@ DEPENDENCIES
   sidekiq (~> 6.1.2)
   sidekiq-cron (~> 1.1)
   sidekiq-unique-jobs (~> 6.0.25)
-  simplecov (= 0.17.1)
+  simplecov (= 0.20.0)
   sitemap_generator (~> 6.1)
   slack-notifier (~> 2.3)
   spring (~> 2.1)
diff --git a/vendor/cache/simplecov-0.17.1.gem b/vendor/cache/simplecov-0.17.1.gem
deleted file mode 100644
index cafc6cded832f..0000000000000
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diff --git a/vendor/cache/simplecov-0.20.0.gem b/vendor/cache/simplecov-0.20.0.gem
new file mode 100644
index 0000000000000..56cee6960dc70
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diff --git a/vendor/cache/simplecov-html-0.10.2.gem b/vendor/cache/simplecov-html-0.10.2.gem
deleted file mode 100644
index 363619b29aced..0000000000000
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diff --git a/vendor/cache/simplecov-html-0.12.3.gem b/vendor/cache/simplecov-html-0.12.3.gem
new file mode 100644
index 0000000000000..003d7ca49acbb
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diff --git a/vendor/cache/simplecov_json_formatter-0.1.2.gem b/vendor/cache/simplecov_json_formatter-0.1.2.gem
new file mode 100644
index 0000000000000..018214257e0e4
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