diff --git a/api/Gemfile b/api/Gemfile
index 8b184019d..fbdde183c 100644
--- a/api/Gemfile
+++ b/api/Gemfile
@@ -10,7 +10,7 @@ gemspec
 
 group :test, :development do
   gem 'benchmark-ips', '~> 2.14.0'
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/common/Gemfile b/common/Gemfile
index 19d051cee..54bf5103f 100644
--- a/common/Gemfile
+++ b/common/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :development, :test do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/exporter/jaeger/Gemfile b/exporter/jaeger/Gemfile
index 067932ec1..cc2b12ec4 100644
--- a/exporter/jaeger/Gemfile
+++ b/exporter/jaeger/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :test, :development do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rspec-mocks', '~> 3.13.7'
   gem 'rubocop', '~> 1.87.0'
diff --git a/exporter/otlp-common/Gemfile b/exporter/otlp-common/Gemfile
index e0f753407..53fa577da 100644
--- a/exporter/otlp-common/Gemfile
+++ b/exporter/otlp-common/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :test, :development do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/exporter/otlp-grpc/Gemfile b/exporter/otlp-grpc/Gemfile
index 68d3c1d3a..303cd819e 100644
--- a/exporter/otlp-grpc/Gemfile
+++ b/exporter/otlp-grpc/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :test, :development do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/exporter/otlp-http/Gemfile b/exporter/otlp-http/Gemfile
index 68d3c1d3a..303cd819e 100644
--- a/exporter/otlp-http/Gemfile
+++ b/exporter/otlp-http/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :test, :development do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/exporter/otlp-logs/Gemfile b/exporter/otlp-logs/Gemfile
index 4b8028fbd..70ce2f926 100644
--- a/exporter/otlp-logs/Gemfile
+++ b/exporter/otlp-logs/Gemfile
@@ -10,7 +10,7 @@ gemspec
 
 group :test, :development do
   gem 'appraisal', '~> 2.5.0'
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/exporter/otlp-metrics/Gemfile b/exporter/otlp-metrics/Gemfile
index f98e900c4..f9363d483 100644
--- a/exporter/otlp-metrics/Gemfile
+++ b/exporter/otlp-metrics/Gemfile
@@ -10,7 +10,7 @@ gemspec
 
 group :test, :development do
   gem 'appraisal', '~> 2.5.0'
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/exporter/otlp/Gemfile b/exporter/otlp/Gemfile
index 12d709d05..ac2f794b8 100644
--- a/exporter/otlp/Gemfile
+++ b/exporter/otlp/Gemfile
@@ -10,7 +10,7 @@ gemspec
 
 group :test, :development do
   gem 'appraisal', '~> 2.5.0'
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/exporter/zipkin/Gemfile b/exporter/zipkin/Gemfile
index 9e4f6d2b7..fcdcc9eff 100644
--- a/exporter/zipkin/Gemfile
+++ b/exporter/zipkin/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :test, :development do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/logs_api/Gemfile b/logs_api/Gemfile
index 7b446fd66..9bdf61715 100644
--- a/logs_api/Gemfile
+++ b/logs_api/Gemfile
@@ -11,7 +11,7 @@ gemspec
 group :test, :development do
   gem 'benchmark-ips', '~> 2.14.0'
   gem 'logger', '~> 1.7.0' # should move to appraisals
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/logs_sdk/Gemfile b/logs_sdk/Gemfile
index 27a70ed18..6c87793d6 100644
--- a/logs_sdk/Gemfile
+++ b/logs_sdk/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :test, :development do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/metrics_api/Gemfile b/metrics_api/Gemfile
index 65555d4ed..f551e099e 100644
--- a/metrics_api/Gemfile
+++ b/metrics_api/Gemfile
@@ -10,7 +10,7 @@ gemspec
 
 group :test, :development do
   gem 'benchmark-ips', '~> 2.14.0'
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/metrics_sdk/Gemfile b/metrics_sdk/Gemfile
index 98a49f3a1..0b3257119 100644
--- a/metrics_sdk/Gemfile
+++ b/metrics_sdk/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :test, :development do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/propagator/b3/Gemfile b/propagator/b3/Gemfile
index 6013cc49e..6df43f14c 100644
--- a/propagator/b3/Gemfile
+++ b/propagator/b3/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :test, :development do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/propagator/jaeger/Gemfile b/propagator/jaeger/Gemfile
index 08e1d335a..da5e45360 100644
--- a/propagator/jaeger/Gemfile
+++ b/propagator/jaeger/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :test, :development do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/registry/Gemfile b/registry/Gemfile
index 78d2897ce..8e6b63d61 100644
--- a/registry/Gemfile
+++ b/registry/Gemfile
@@ -10,7 +10,7 @@ gemspec
 
 group :test, :development do
   gem 'appraisal', '~> 2.5.0'
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rspec-mocks', '~> 3.13.7'
   gem 'rubocop', '~> 1.87.0'
diff --git a/sdk/Gemfile b/sdk/Gemfile
index 50e7b44bb..d2324a59f 100644
--- a/sdk/Gemfile
+++ b/sdk/Gemfile
@@ -10,7 +10,7 @@ gemspec
 
 group :test, :development do
   gem 'opentelemetry-instrumentation-base', '~> 0.26.0'
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/sdk_experimental/Gemfile b/sdk_experimental/Gemfile
index a5f2ea811..4fd1f2c0f 100644
--- a/sdk_experimental/Gemfile
+++ b/sdk_experimental/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :test, :development do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'
diff --git a/semantic_conventions/Gemfile b/semantic_conventions/Gemfile
index 99e86fecd..35dd09bb8 100644
--- a/semantic_conventions/Gemfile
+++ b/semantic_conventions/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :development, :test do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'mutex_m' if RUBY_VERSION >= '3.4'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
diff --git a/test_helpers/Gemfile b/test_helpers/Gemfile
index ae2b12423..aff620505 100644
--- a/test_helpers/Gemfile
+++ b/test_helpers/Gemfile
@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :test, :development do
-  gem 'minitest', '~> 5.27.0'
+  gem 'minitest', '~> 6.0.0'
   gem 'rake', '~> 13.4.0'
   gem 'rubocop', '~> 1.87.0'
   gem 'rubocop-minitest', '~> 0.39.0'