diff --git a/Gemfile b/Gemfile
index 9dd6b7e..872e0a9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gemspec
 group :development do
   gem "debug", ">= 1.0.0"
   gem "gem-release", "~> 2.2"
-  gem "minitest", "~> 5.0"
+  gem "minitest", "~> 5.22"
   gem "minitest-spec-context", "~> 0.0.4"
   gem "rake", "~> 13.0"
   gem "rubocop", "~> 1.21"
diff --git a/Gemfile.lock b/Gemfile.lock
index 7c55439..c5e7ca8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -18,7 +18,7 @@ GEM
       reline (>= 0.4.2)
     json (2.7.1)
     language_server-protocol (3.17.0.3)
-    minitest (5.21.2)
+    minitest (5.22.2)
     minitest-spec-context (0.0.5)
     parallel (1.24.0)
     parser (3.3.0.5)
@@ -65,7 +65,7 @@ PLATFORMS
 DEPENDENCIES
   debug (>= 1.0.0)
   gem-release (~> 2.2)
-  minitest (~> 5.0)
+  minitest (~> 5.22)
   minitest-spec-context (~> 0.0.4)
   rake (~> 13.0)
   rubocop (~> 1.21)