diff --git a/Gemfile.lock b/Gemfile.lock
index f945a6b363..93b8ccc1f5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -59,7 +59,7 @@ DEPENDENCIES
   pry (= 0.13.1)
   rake (= 13.0.1)
   rubocop (= 0.85.1)
-  simplecov (= 0.17.1)
+  simplecov (= 0.17.1, < 0.18)
   test-unit (= 3.3.5)
   timecop (= 0.9.1)
   yard (= 0.9.25)
diff --git a/faker.gemspec b/faker.gemspec
index 63e1448f43..0be7a14ff1 100644
--- a/faker.gemspec
+++ b/faker.gemspec
@@ -33,7 +33,10 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency('pry', '0.13.1')
   spec.add_development_dependency('rake', '13.0.1')
   spec.add_development_dependency('rubocop', '0.85.1')
-  spec.add_development_dependency('simplecov', '0.17.1')
+  # Workaround for cc-test-reporter with SimpleCov 0.18.
+  # Stop upgrading SimpleCov until the following issue will be resolved.
+  # https://github.com/codeclimate/test-reporter/issues/418
+  spec.add_development_dependency('simplecov', '0.17.1', '< 0.18')
   spec.add_development_dependency('test-unit', '3.3.5')
   spec.add_development_dependency('timecop', '0.9.1')
   spec.add_development_dependency('yard', '0.9.25')