diff --git a/examples/ruby-minitest/Gemfile b/examples/ruby-minitest/Gemfile
index eb2b1017..e3df8d77 100644
--- a/examples/ruby-minitest/Gemfile
+++ b/examples/ruby-minitest/Gemfile
@@ -11,5 +11,5 @@ gem "oselvar-var-config", path: "../../ruby/packages/var-config"
 gem "oselvar-var-runner", path: "../../ruby/packages/var-runner"
 gem "oselvar-var-minitest", path: "../../ruby/packages/var-minitest"
 
-gem "minitest", "~> 5.20"
+gem "minitest", "~> 6.0"
 gem "rake", "~> 13.0"
diff --git a/ruby/Gemfile b/ruby/Gemfile
index 10992a96..9d9a4281 100644
--- a/ruby/Gemfile
+++ b/ruby/Gemfile
@@ -12,12 +12,12 @@ gem 'oselvar-var-rspec', path: 'packages/var-rspec'
 gem 'oselvar-var-runner', path: 'packages/var-runner'
 
 group :development, :test do
-  gem 'minitest', '~> 5.20'
+  gem 'minitest', '~> 6.0'
   gem 'rake'
   gem 'rspec', '~> 3.13'
   gem 'rubocop', '~> 1.60', require: false
   gem 'rubocop-rake', require: false
   gem 'rubocop-rspec', require: false
-  gem 'simplecov', '~> 0.22', require: false
+  gem 'simplecov', '~> 1.0', require: false
   gem 'simplecov-lcov', '~> 0.8', require: false
 end
diff --git a/ruby/Gemfile.lock b/ruby/Gemfile.lock
index e87dd76d..40dd9438 100644
--- a/ruby/Gemfile.lock
+++ b/ruby/Gemfile.lock
@@ -13,7 +13,7 @@ PATH
   remote: packages/var-minitest
   specs:
     oselvar-var-minitest (0.4.2)
-      minitest (~> 5.20)
+      minitest (~> 6.0)
       oselvar-var-runner (= 0.4.2)
 
 PATH
@@ -45,11 +45,13 @@ GEM
     cucumber-cucumber-expressions (20.0.0)
       bigdecimal
     diff-lcs (1.6.2)
-    docile (1.4.1)
+    drb (2.2.3)
     json (2.21.1)
     language_server-protocol (3.17.0.6)
     lint_roller (1.1.0)
-    minitest (5.27.0)
+    minitest (6.0.6)
+      drb (~> 2.0)
+      prism (~> 1.5)
     parallel (1.28.0)
     parser (3.3.12.0)
       ast (~> 2.4.1)
@@ -94,13 +96,8 @@ GEM
       regexp_parser (>= 2.0)
       rubocop (~> 1.86, >= 1.86.2)
     ruby-progressbar (1.13.0)
-    simplecov (0.22.0)
-      docile (~> 1.1)
-      simplecov-html (~> 0.11)
-      simplecov_json_formatter (~> 0.1)
-    simplecov-html (0.13.2)
+    simplecov (1.0.2)
     simplecov-lcov (0.9.0)
-    simplecov_json_formatter (0.1.4)
     unicode-display_width (3.2.0)
       unicode-emoji (~> 4.1)
     unicode-emoji (4.2.0)
@@ -110,7 +107,7 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  minitest (~> 5.20)
+  minitest (~> 6.0)
   oselvar-var!
   oselvar-var-config!
   oselvar-var-core!
@@ -122,7 +119,7 @@ DEPENDENCIES
   rubocop (~> 1.60)
   rubocop-rake
   rubocop-rspec
-  simplecov (~> 0.22)
+  simplecov (~> 1.0)
   simplecov-lcov (~> 0.8)
 
 BUNDLED WITH
diff --git a/ruby/packages/var-minitest/oselvar-var-minitest.gemspec b/ruby/packages/var-minitest/oselvar-var-minitest.gemspec
index d930027b..628e331c 100644
--- a/ruby/packages/var-minitest/oselvar-var-minitest.gemspec
+++ b/ruby/packages/var-minitest/oselvar-var-minitest.gemspec
@@ -13,7 +13,7 @@ Gem::Specification.new do |s|
   s.files = Dir['lib/**/*.rb']
   s.require_paths = ['lib']
 
-  s.add_dependency 'minitest', '~> 5.20'
+  s.add_dependency 'minitest', '~> 6.0'
   s.add_dependency 'oselvar-var-runner', '0.4.2'
   s.metadata['rubygems_mfa_required'] = 'true'
 end