diff --git a/generated/google-apis-analyticsdata_v1alpha/google-apis-analyticsdata_v1alpha.gemspec b/generated/google-apis-analyticsdata_v1alpha/google-apis-analyticsdata_v1alpha.gemspec
index 4d94393b816..922ea9682cf 100644
--- a/generated/google-apis-analyticsdata_v1alpha/google-apis-analyticsdata_v1alpha.gemspec
+++ b/generated/google-apis-analyticsdata_v1alpha/google-apis-analyticsdata_v1alpha.gemspec
@@ -29,4 +29,5 @@ Gem::Specification.new do |gem|
 
   gem.required_ruby_version = '>= 2.5'
   gem.add_runtime_dependency "google-apis-core", "~> 0.1"
+  gem.add_runtime_dependency "multi_json", "~> 1.0"
 end
diff --git a/generated/google-apis-appengine_v1beta4/google-apis-appengine_v1beta4.gemspec b/generated/google-apis-appengine_v1beta4/google-apis-appengine_v1beta4.gemspec
index fddc4425d4c..61439dc06af 100644
--- a/generated/google-apis-appengine_v1beta4/google-apis-appengine_v1beta4.gemspec
+++ b/generated/google-apis-appengine_v1beta4/google-apis-appengine_v1beta4.gemspec
@@ -29,4 +29,5 @@ Gem::Specification.new do |gem|
 
   gem.required_ruby_version = '>= 2.5'
   gem.add_runtime_dependency "google-apis-core", "~> 0.1"
+  gem.add_runtime_dependency "multi_json", "~> 1.0"
 end
diff --git a/generated/google-apis-appengine_v1beta5/google-apis-appengine_v1beta5.gemspec b/generated/google-apis-appengine_v1beta5/google-apis-appengine_v1beta5.gemspec
index 6bec2ab370e..f472e68faff 100644
--- a/generated/google-apis-appengine_v1beta5/google-apis-appengine_v1beta5.gemspec
+++ b/generated/google-apis-appengine_v1beta5/google-apis-appengine_v1beta5.gemspec
@@ -29,4 +29,5 @@ Gem::Specification.new do |gem|
 
   gem.required_ruby_version = '>= 2.5'
   gem.add_runtime_dependency "google-apis-core", "~> 0.1"
+  gem.add_runtime_dependency "multi_json", "~> 1.0"
 end
diff --git a/generated/google-apis-cloudshell_v1alpha1/google-apis-cloudshell_v1alpha1.gemspec b/generated/google-apis-cloudshell_v1alpha1/google-apis-cloudshell_v1alpha1.gemspec
index ee87891a674..0628ef5dfb9 100644
--- a/generated/google-apis-cloudshell_v1alpha1/google-apis-cloudshell_v1alpha1.gemspec
+++ b/generated/google-apis-cloudshell_v1alpha1/google-apis-cloudshell_v1alpha1.gemspec
@@ -29,4 +29,5 @@ Gem::Specification.new do |gem|
 
   gem.required_ruby_version = '>= 2.5'
   gem.add_runtime_dependency "google-apis-core", "~> 0.1"
+  gem.add_runtime_dependency "multi_json", "~> 1.0"
 end
diff --git a/generated/google-apis-genomics_v1/google-apis-genomics_v1.gemspec b/generated/google-apis-genomics_v1/google-apis-genomics_v1.gemspec
index a8cb73e7f6f..c3227bed26a 100644
--- a/generated/google-apis-genomics_v1/google-apis-genomics_v1.gemspec
+++ b/generated/google-apis-genomics_v1/google-apis-genomics_v1.gemspec
@@ -29,4 +29,5 @@ Gem::Specification.new do |gem|
 
   gem.required_ruby_version = '>= 2.5'
   gem.add_runtime_dependency "google-apis-core", "~> 0.1"
+  gem.add_runtime_dependency "multi_json", "~> 1.0"
 end
diff --git a/generated/google-apis-genomics_v1alpha2/google-apis-genomics_v1alpha2.gemspec b/generated/google-apis-genomics_v1alpha2/google-apis-genomics_v1alpha2.gemspec
index 1d7ca19f626..aef5d967e83 100644
--- a/generated/google-apis-genomics_v1alpha2/google-apis-genomics_v1alpha2.gemspec
+++ b/generated/google-apis-genomics_v1alpha2/google-apis-genomics_v1alpha2.gemspec
@@ -29,4 +29,5 @@ Gem::Specification.new do |gem|
 
   gem.required_ruby_version = '>= 2.5'
   gem.add_runtime_dependency "google-apis-core", "~> 0.1"
+  gem.add_runtime_dependency "multi_json", "~> 1.0"
 end
diff --git a/generated/google-apis-youtube_analytics_v1/google-apis-youtube_analytics_v1.gemspec b/generated/google-apis-youtube_analytics_v1/google-apis-youtube_analytics_v1.gemspec
index db5138413a1..64b173da190 100644
--- a/generated/google-apis-youtube_analytics_v1/google-apis-youtube_analytics_v1.gemspec
+++ b/generated/google-apis-youtube_analytics_v1/google-apis-youtube_analytics_v1.gemspec
@@ -29,4 +29,5 @@ Gem::Specification.new do |gem|
 
   gem.required_ruby_version = '>= 2.4'
   gem.add_runtime_dependency "google-apis-core", "~> 0.1"
+  gem.add_runtime_dependency "multi_json", "~> 1.0"
 end
diff --git a/generated/google-apis-youtube_partner_v1/google-apis-youtube_partner_v1.gemspec b/generated/google-apis-youtube_partner_v1/google-apis-youtube_partner_v1.gemspec
index 014a9479b74..e9797c0eabc 100644
--- a/generated/google-apis-youtube_partner_v1/google-apis-youtube_partner_v1.gemspec
+++ b/generated/google-apis-youtube_partner_v1/google-apis-youtube_partner_v1.gemspec
@@ -29,4 +29,5 @@ Gem::Specification.new do |gem|
 
   gem.required_ruby_version = '>= 2.4'
   gem.add_runtime_dependency "google-apis-core", "~> 0.1"
+  gem.add_runtime_dependency "multi_json", "~> 1.0"
 end