diff --git a/Gemfile b/Gemfile
index 62dae70bdfb0..37e9c7151510 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ gem 'binding_of_caller'
 gem 'rake'
 
 group :test do
-  gem 'mocha', '~> 1.3.0'
+  gem 'mocha', '~> 1.13.0'
   gem 'rspec'
   gem 'rubocop', '>= 0.77.0'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index a2a8b4588813..2a14f784bc8b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -19,10 +19,8 @@ GEM
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     jaro_winkler (1.5.4)
-    metaclass (0.0.4)
     minitest (5.11.3)
-    mocha (1.3.0)
-      metaclass (~> 0.0.1)
+    mocha (1.13.0)
     multipart-post (2.0.0)
     octokit (4.13.0)
       sawyer (~> 0.8.0, >= 0.5.3)
@@ -67,7 +65,7 @@ PLATFORMS
 DEPENDENCIES
   activesupport
   binding_of_caller
-  mocha (~> 1.3.0)
+  mocha (~> 1.13.0)
   octokit
   rake
   rspec