diff --git a/Gemfile.lock b/Gemfile.lock
index 33680c8392..e4d98084a6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,7 +15,7 @@ GEM
       concurrent-ruby (~> 1.0)
     json (2.6.3)
     method_source (1.0.0)
-    minitest (5.16.3)
+    minitest (5.18.0)
     parallel (1.22.1)
     parser (3.1.3.0)
       ast (~> 2.4.1)
@@ -63,7 +63,7 @@ PLATFORMS
 
 DEPENDENCIES
   faker!
-  minitest (= 5.16.3)
+  minitest (= 5.18.0)
   pry (= 0.14.1)
   rake (= 13.0.6)
   rubocop (= 1.41.0)
diff --git a/faker.gemspec b/faker.gemspec
index dd82e5768a..13390ded2b 100644
--- a/faker.gemspec
+++ b/faker.gemspec
@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   spec.metadata['rubygems_mfa_required'] = 'true'
 
   spec.add_dependency('i18n', '>= 1.8.11', '< 2')
-  spec.add_development_dependency('minitest', '5.16.3')
+  spec.add_development_dependency('minitest', '5.18.0')
   spec.add_development_dependency('pry', '0.14.1')
   spec.add_development_dependency('rake', '13.0.6')
   spec.add_development_dependency('rubocop', '1.41.0')