diff --git a/shared/output/cloud/compute_small/Gemfile b/shared/output/cloud/compute_small/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/cloud/compute_small/Gemfile
+++ b/shared/output/cloud/compute_small/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/cloud/compute_small/snippets/Gemfile b/shared/output/cloud/compute_small/snippets/Gemfile
index a3bef000c..d8e889cf5 100644
--- a/shared/output/cloud/compute_small/snippets/Gemfile
+++ b/shared/output/cloud/compute_small/snippets/Gemfile
@@ -25,7 +25,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
diff --git a/shared/output/cloud/compute_small_wrapper/Gemfile b/shared/output/cloud/compute_small_wrapper/Gemfile
index a78b7c12b..2f03d034a 100644
--- a/shared/output/cloud/compute_small_wrapper/Gemfile
+++ b/shared/output/cloud/compute_small_wrapper/Gemfile
@@ -4,7 +4,7 @@ gemspec
 
 gem "google-cloud-compute-v1", path: "../google-cloud-compute-v1"
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/cloud/grafeas_v1/Gemfile b/shared/output/cloud/grafeas_v1/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/cloud/grafeas_v1/Gemfile
+++ b/shared/output/cloud/grafeas_v1/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/cloud/grafeas_v1/snippets/Gemfile b/shared/output/cloud/grafeas_v1/snippets/Gemfile
index beada1615..0541450ea 100644
--- a/shared/output/cloud/grafeas_v1/snippets/Gemfile
+++ b/shared/output/cloud/grafeas_v1/snippets/Gemfile
@@ -25,7 +25,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
diff --git a/shared/output/cloud/language_v1/Gemfile b/shared/output/cloud/language_v1/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/cloud/language_v1/Gemfile
+++ b/shared/output/cloud/language_v1/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/cloud/language_v1/snippets/Gemfile b/shared/output/cloud/language_v1/snippets/Gemfile
index c26022dd6..2fb98a172 100644
--- a/shared/output/cloud/language_v1/snippets/Gemfile
+++ b/shared/output/cloud/language_v1/snippets/Gemfile
@@ -25,7 +25,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
diff --git a/shared/output/cloud/language_v1beta1/Gemfile b/shared/output/cloud/language_v1beta1/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/cloud/language_v1beta1/Gemfile
+++ b/shared/output/cloud/language_v1beta1/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/cloud/language_v1beta1/snippets/Gemfile b/shared/output/cloud/language_v1beta1/snippets/Gemfile
index 956d2a478..87eac8306 100644
--- a/shared/output/cloud/language_v1beta1/snippets/Gemfile
+++ b/shared/output/cloud/language_v1beta1/snippets/Gemfile
@@ -25,7 +25,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
diff --git a/shared/output/cloud/language_v1beta2/Gemfile b/shared/output/cloud/language_v1beta2/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/cloud/language_v1beta2/Gemfile
+++ b/shared/output/cloud/language_v1beta2/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/cloud/language_v1beta2/snippets/Gemfile b/shared/output/cloud/language_v1beta2/snippets/Gemfile
index b8971c991..6dde0aa5c 100644
--- a/shared/output/cloud/language_v1beta2/snippets/Gemfile
+++ b/shared/output/cloud/language_v1beta2/snippets/Gemfile
@@ -25,7 +25,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
diff --git a/shared/output/cloud/language_wrapper/Gemfile b/shared/output/cloud/language_wrapper/Gemfile
index e52683bd7..fa15ec0e2 100644
--- a/shared/output/cloud/language_wrapper/Gemfile
+++ b/shared/output/cloud/language_wrapper/Gemfile
@@ -4,7 +4,7 @@ gemspec
 
 gem "google-cloud-language-v1", path: "../google-cloud-language-v1"
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/cloud/location/Gemfile b/shared/output/cloud/location/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/cloud/location/Gemfile
+++ b/shared/output/cloud/location/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/cloud/location/snippets/Gemfile b/shared/output/cloud/location/snippets/Gemfile
index d80913bf8..a44c85e67 100644
--- a/shared/output/cloud/location/snippets/Gemfile
+++ b/shared/output/cloud/location/snippets/Gemfile
@@ -25,7 +25,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
diff --git a/shared/output/cloud/secretmanager_v1beta1/Gemfile b/shared/output/cloud/secretmanager_v1beta1/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/cloud/secretmanager_v1beta1/Gemfile
+++ b/shared/output/cloud/secretmanager_v1beta1/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/cloud/secretmanager_v1beta1/snippets/Gemfile b/shared/output/cloud/secretmanager_v1beta1/snippets/Gemfile
index 9439f8eed..133c98cd4 100644
--- a/shared/output/cloud/secretmanager_v1beta1/snippets/Gemfile
+++ b/shared/output/cloud/secretmanager_v1beta1/snippets/Gemfile
@@ -25,7 +25,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
diff --git a/shared/output/cloud/secretmanager_wrapper/Gemfile b/shared/output/cloud/secretmanager_wrapper/Gemfile
index 3db35f974..becdaf836 100644
--- a/shared/output/cloud/secretmanager_wrapper/Gemfile
+++ b/shared/output/cloud/secretmanager_wrapper/Gemfile
@@ -5,7 +5,7 @@ gemspec
 gem "google-cloud-secret_manager-v1", path: "../google-cloud-secret_manager-v1"
 gem "google-cloud-secret_manager-v1beta1", path: "../google-cloud-secret_manager-v1beta1"
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/cloud/speech_v1/Gemfile b/shared/output/cloud/speech_v1/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/cloud/speech_v1/Gemfile
+++ b/shared/output/cloud/speech_v1/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/cloud/speech_v1/snippets/Gemfile b/shared/output/cloud/speech_v1/snippets/Gemfile
index 2a0f81f1c..817a69dcf 100644
--- a/shared/output/cloud/speech_v1/snippets/Gemfile
+++ b/shared/output/cloud/speech_v1/snippets/Gemfile
@@ -25,7 +25,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
diff --git a/shared/output/cloud/vision_v1/Gemfile b/shared/output/cloud/vision_v1/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/cloud/vision_v1/Gemfile
+++ b/shared/output/cloud/vision_v1/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/cloud/vision_v1/snippets/Gemfile b/shared/output/cloud/vision_v1/snippets/Gemfile
index b7e3baa9e..641403115 100644
--- a/shared/output/cloud/vision_v1/snippets/Gemfile
+++ b/shared/output/cloud/vision_v1/snippets/Gemfile
@@ -25,7 +25,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
diff --git a/shared/output/gapic/templates/garbage/Gemfile b/shared/output/gapic/templates/garbage/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/gapic/templates/garbage/Gemfile
+++ b/shared/output/gapic/templates/garbage/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/gapic/templates/garbage/snippets/Gemfile b/shared/output/gapic/templates/garbage/snippets/Gemfile
index 2aefbd4ce..ab1811635 100644
--- a/shared/output/gapic/templates/garbage/snippets/Gemfile
+++ b/shared/output/gapic/templates/garbage/snippets/Gemfile
@@ -33,7 +33,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
diff --git a/shared/output/gapic/templates/noservice/Gemfile b/shared/output/gapic/templates/noservice/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/gapic/templates/noservice/Gemfile
+++ b/shared/output/gapic/templates/noservice/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/gapic/templates/noservice/snippets/Gemfile b/shared/output/gapic/templates/noservice/snippets/Gemfile
index 706a8f8a6..bdb6a21c5 100644
--- a/shared/output/gapic/templates/noservice/snippets/Gemfile
+++ b/shared/output/gapic/templates/noservice/snippets/Gemfile
@@ -33,7 +33,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
diff --git a/shared/output/gapic/templates/showcase/Gemfile b/shared/output/gapic/templates/showcase/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/gapic/templates/showcase/Gemfile
+++ b/shared/output/gapic/templates/showcase/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/gapic/templates/showcase/snippets/Gemfile b/shared/output/gapic/templates/showcase/snippets/Gemfile
index 64bd21158..06cd75e13 100644
--- a/shared/output/gapic/templates/showcase/snippets/Gemfile
+++ b/shared/output/gapic/templates/showcase/snippets/Gemfile
@@ -33,7 +33,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
diff --git a/shared/output/gapic/templates/testing/Gemfile b/shared/output/gapic/templates/testing/Gemfile
index 95163a6d1..67f5aaf74 100644
--- a/shared/output/gapic/templates/testing/Gemfile
+++ b/shared/output/gapic/templates/testing/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
-gem "google-style", "~> 1.27.1"
+gem "google-style", ">= 1.27.1", "< 1.30.2"
 gem "minitest", "~> 5.22"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
diff --git a/shared/output/gapic/templates/testing/snippets/Gemfile b/shared/output/gapic/templates/testing/snippets/Gemfile
index 49649821b..f1c5330d2 100644
--- a/shared/output/gapic/templates/testing/snippets/Gemfile
+++ b/shared/output/gapic/templates/testing/snippets/Gemfile
@@ -33,7 +33,7 @@ else
 end
 
 group :test do
-  gem "google-style", "~> 1.26.1"
+  gem "google-style", ">= 1.26.1", "< 1.30.2"
   gem "minitest", "~> 5.16"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"