diff --git a/.gitignore b/.gitignore
index ee23455f777a..73139a471919 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,16 +16,12 @@
 *#
 *.swp
 
-coverage/*
 *.pyc
 
 # IDEA files
 .idea/*
 *.iml
 
-# Keep project coverage statistics under source control
-!coverage/.last_run.json
-
 # OS generated files
 .DS_Store
 .DS_Store?
diff --git a/Gemfile b/Gemfile
index eea00c49cbe6..2826b4036dba 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,5 +9,4 @@ group :test do
   gem 'parallel_tests'
   gem 'rspec'
   gem 'rubocop', '~> 0.60.0'
-  gem 'simplecov'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index e8c258e5c329..7facb5a2f915 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -51,11 +51,6 @@ GEM
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.4.0)
     ruby-progressbar (1.10.0)
-    simplecov (0.16.1)
-      docile (~> 1.1)
-      json (>= 1.8, < 3)
-      simplecov-html (~> 0.10.0)
-    simplecov-html (0.10.2)
     thread_safe (0.3.6)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
@@ -72,7 +67,6 @@ DEPENDENCIES
   rake
   rspec
   rubocop (~> 0.60.0)
-  simplecov
 
 BUNDLED WITH
    1.16.5
diff --git a/coverage/.last_run.json b/coverage/.last_run.json
deleted file mode 100644
index 109774030c6d..000000000000
--- a/coverage/.last_run.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "result": {
-    "covered_percent": 69.55
-  }
-}
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 65aca6147f21..ae203a804feb 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -11,9 +11,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-require 'simplecov'
-SimpleCov.start unless ENV['DISABLE_COVERAGE']
-
 RSpec.configure do |config|
   config.mock_with :mocha
 end