diff --git a/google-cloud-bigquery/Gemfile b/google-cloud-bigquery/Gemfile
index 9b42a5f8075b..dbb09be66fea 100644
--- a/google-cloud-bigquery/Gemfile
+++ b/google-cloud-bigquery/Gemfile
@@ -24,14 +24,17 @@ gem "csv"
 gem "google-cloud-bigquery-connection-v1", ">= 1.3.0", "< 1.5"
 gem "google-cloud-data_catalog", path: "../google-cloud-data_catalog"
 gem "google-cloud-storage", path: "../google-cloud-storage"
-gem "google-style", "~> 1.30.1"
-gem "minitest", "~> 5.16"
+gem "google-style", "~> 1.32.0"
+gem "irb", "~> 1.17"
+gem "minitest", "~> 6.0.2"
 gem "minitest-autotest", "~> 1.0"
-gem "minitest-focus", "~> 1.1"
+gem "minitest-focus", "~> 1.4"
+gem "minitest-mock", "~> 5.27"
 gem "minitest-reporters", "~> 1.5.0", require: false
-gem "minitest-rg", "~> 5.2"
+gem "minitest-rg", "~> 5.3"
+gem "ostruct", "~> 0.5.5"
 gem "rake"
-gem "redcarpet", "~> 3.0"
-gem "simplecov", "~> 0.18"
+gem "redcarpet", "~> 3.6"
+gem "simplecov", "~> 0.22"
 gem "yard", "~> 0.9"
 gem "yard-doctest", "~> 0.1.13"
diff --git a/google-cloud-bigquery/README.md b/google-cloud-bigquery/README.md
index 197e30d0e957..5eab7880c157 100644
--- a/google-cloud-bigquery/README.md
+++ b/google-cloud-bigquery/README.md
@@ -70,7 +70,7 @@ Google::Apis.logger = my_logger
 
 ## Supported Ruby Versions
 
-This library is supported on Ruby 3.1+.
+This library is supported on Ruby 3.2+.
 
 Google provides official support for Ruby versions that are actively supported
 by Ruby Core—that is, Ruby versions that are either in normal maintenance or
diff --git a/google-cloud-bigquery/google-cloud-bigquery.gemspec b/google-cloud-bigquery/google-cloud-bigquery.gemspec
index 5f8a09e041f8..542a35fd32fa 100644
--- a/google-cloud-bigquery/google-cloud-bigquery.gemspec
+++ b/google-cloud-bigquery/google-cloud-bigquery.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |gem|
                        "CHANGELOG.md", "CODE_OF_CONDUCT.md", "LICENSE", ".yardopts"]
   gem.require_paths = ["lib"]
 
-  gem.required_ruby_version = ">= 3.1"
+  gem.required_ruby_version = ">= 3.2"
 
   gem.add_dependency "bigdecimal", "~> 3.0"
   gem.add_dependency "concurrent-ruby", "~> 1.0"
diff --git a/google-cloud-bigquery/test/helper.rb b/google-cloud-bigquery/test/helper.rb
index eb7b022e0594..50aa74d4341a 100644
--- a/google-cloud-bigquery/test/helper.rb
+++ b/google-cloud-bigquery/test/helper.rb
@@ -17,6 +17,7 @@
 gem "minitest"
 require "minitest/autorun"
 require "minitest/focus"
+require "minitest/mock"
 require "minitest/rg"
 require "ostruct"
 require "json"
diff --git a/google-cloud-dns/Gemfile b/google-cloud-dns/Gemfile
index d10657e3b7b6..2e3a759461a7 100644
--- a/google-cloud-dns/Gemfile
+++ b/google-cloud-dns/Gemfile
@@ -20,13 +20,16 @@ local_dependencies.each do |name|
 end
 
 gem "autotest-suffix", "~> 1.1"
-gem "google-style", "~> 1.30.1"
-gem "minitest", "~> 5.16"
+gem "google-style", "~> 1.32.0"
+gem "irb", "~> 1.17"
+gem "minitest", "~> 6.0.2"
 gem "minitest-autotest", "~> 1.0"
-gem "minitest-focus", "~> 1.1"
-gem "minitest-rg", "~> 5.2"
+gem "minitest-focus", "~> 1.4"
+gem "minitest-mock", "~> 5.27"
+gem "minitest-rg", "~> 5.3"
+gem "ostruct", "~> 0.5.5"
 gem "rake"
-gem "redcarpet", "~> 3.0"
-gem "simplecov", "~> 0.9"
+gem "redcarpet", "~> 3.6"
+gem "simplecov", "~> 0.22"
 gem "yard", "~> 0.9"
 gem "yard-doctest", "~> 0.1.13"
diff --git a/google-cloud-dns/README.md b/google-cloud-dns/README.md
index 6293cd180d50..0fd12a3f716d 100644
--- a/google-cloud-dns/README.md
+++ b/google-cloud-dns/README.md
@@ -61,7 +61,7 @@ Google::Apis.logger = my_logger
 
 ## Supported Ruby Versions
 
-This library is supported on Ruby 3.0+.
+This library is supported on Ruby 3.2+.
 
 Google provides official support for Ruby versions that are actively supported
 by Ruby Core—that is, Ruby versions that are either in normal maintenance or
diff --git a/google-cloud-dns/google-cloud-dns.gemspec b/google-cloud-dns/google-cloud-dns.gemspec
index 3edfec81cdd3..f955f8f3a649 100644
--- a/google-cloud-dns/google-cloud-dns.gemspec
+++ b/google-cloud-dns/google-cloud-dns.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |gem|
                       ["OVERVIEW.md", "AUTHENTICATION.md", "LOGGING.md", "CONTRIBUTING.md", "TROUBLESHOOTING.md", "CHANGELOG.md", "CODE_OF_CONDUCT.md", "LICENSE", ".yardopts"]
   gem.require_paths = ["lib"]
 
-  gem.required_ruby_version = ">= 3.0"
+  gem.required_ruby_version = ">= 3.2"
 
   gem.add_dependency "google-cloud-core", "~> 1.6"
   gem.add_dependency "google-apis-dns_v1", "~> 0.1"
diff --git a/google-cloud-logging/Gemfile b/google-cloud-logging/Gemfile
index d7a0f6d79c9e..8adc24536628 100644
--- a/google-cloud-logging/Gemfile
+++ b/google-cloud-logging/Gemfile
@@ -20,19 +20,24 @@ local_dependencies.each do |name|
 end
 
 gem "autotest-suffix", "~> 1.1"
+gem "benchmark", "~> 0.5.0"
+gem "cgi", "~> 0.5.1"
 gem "google-cloud-error_reporting", path: "../google-cloud-error_reporting"
 gem "google-cloud-storage", path: "../google-cloud-storage"
-gem "google-style", "~> 1.30.1"
-gem "minitest", "~> 5.16"
+gem "google-style", "~> 1.32.0"
+gem "irb", "~> 1.17"
+gem "minitest", "~> 6.0.2"
 gem "minitest-autotest", "~> 1.0"
-gem "minitest-focus", "~> 1.1"
+gem "minitest-focus", "~> 1.4"
+gem "minitest-mock", "~> 5.27"
 gem "minitest-reporters", "~> 1.5.0", require: false
-gem "minitest-rg", "~> 5.2"
+gem "minitest-rg", "~> 5.3"
+gem "ostruct", "~> 0.5.5"
 gem "rack", ">= 0.1"
 gem "railties", ">= 5.0", "< 7.1.4"
 gem "rake"
-gem "redcarpet", "~> 3.0"
-gem "simplecov", "~> 0.9"
+gem "redcarpet", "~> 3.6"
+gem "simplecov", "~> 0.22"
 gem "stackdriver-core", path: "../stackdriver-core"
 gem "yard", "~> 0.9"
 gem "yard-doctest", "~> 0.1.13"
diff --git a/google-cloud-logging/README.md b/google-cloud-logging/README.md
index 6d77304e00ec..f26dd99e91de 100644
--- a/google-cloud-logging/README.md
+++ b/google-cloud-logging/README.md
@@ -182,7 +182,7 @@ end
 
 ## Supported Ruby Versions
 
-This library is supported on Ruby 3.0+.
+This library is supported on Ruby 3.2+.
 
 Google provides official support for Ruby versions that are actively supported
 by Ruby Core—that is, Ruby versions that are either in normal maintenance or
diff --git a/google-cloud-logging/google-cloud-logging.gemspec b/google-cloud-logging/google-cloud-logging.gemspec
index 5ed11c0a44ab..c97f1cb7e7f0 100644
--- a/google-cloud-logging/google-cloud-logging.gemspec
+++ b/google-cloud-logging/google-cloud-logging.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |gem|
                       ["OVERVIEW.md", "AUTHENTICATION.md", "INSTRUMENTATION.md", "LOGGING.md", "CONTRIBUTING.md", "TROUBLESHOOTING.md", "CHANGELOG.md", "CODE_OF_CONDUCT.md", "LICENSE", ".yardopts"]
   gem.require_paths = ["lib"]
 
-  gem.required_ruby_version = ">= 3.0"
+  gem.required_ruby_version = ">= 3.2"
 
   gem.add_dependency "google-cloud-core", "~> 1.5"
   gem.add_dependency "google-cloud-logging-v2", ">= 0.0", "< 2.a"