diff --git a/Gemfile b/Gemfile
index 4ae137e75a..1188b9f93b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,6 +13,6 @@ gem 'rubocop', '1.60.2'
 gem 'rubocop-minitest', '0.34.4'
 gem 'rubocop-rake', '0.6.0'
 gem 'simplecov', '0.22.0'
-gem 'test-unit', '3.6.1'
+gem 'test-unit', '3.6.2'
 gem 'timecop', '0.9.8'
 gem 'yard', '0.9.34'
diff --git a/Gemfile.lock b/Gemfile.lock
index 715ca8b2fa..cf57208cb5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -56,7 +56,7 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.4)
-    test-unit (3.6.1)
+    test-unit (3.6.2)
       power_assert
     timecop (0.9.8)
     unicode-display_width (2.5.0)
@@ -76,7 +76,7 @@ DEPENDENCIES
   rubocop-minitest (= 0.34.4)
   rubocop-rake (= 0.6.0)
   simplecov (= 0.22.0)
-  test-unit (= 3.6.1)
+  test-unit (= 3.6.2)
   timecop (= 0.9.8)
   yard (= 0.9.34)