diff --git a/spec/db/production/settings_spec.rb b/spec/db/production/settings_spec.rb
index db19e98b8510212de711e9064367e4dd78df710a..02e25aa37e3d119d85aaa3d83b51645bde13e646 100644
--- a/spec/db/production/settings_spec.rb
+++ b/spec/db/production/settings_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'rainbow/ext/string'
 
diff --git a/spec/tasks/cache/clear/redis_spec.rb b/spec/tasks/cache/clear/redis_spec.rb
index 97c8c943f3a2410f303e8e3d89829b75b819fb49..4f59798876333e7e4fb805e3cea196078e9b82e6 100644
--- a/spec/tasks/cache/clear/redis_spec.rb
+++ b/spec/tasks/cache/clear/redis_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'clearing redis cache' do
diff --git a/spec/tasks/config_lint_spec.rb b/spec/tasks/config_lint_spec.rb
index 83d54259dfaaf08ef8887f615d35a02a99e8ad0d..c6c11d763884123ae03b3178ef5e2ec44adadb5e 100644
--- a/spec/tasks/config_lint_spec.rb
+++ b/spec/tasks/config_lint_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 Rake.application.rake_require 'tasks/config_lint'
 
diff --git a/spec/tasks/gitlab/artifacts/check_rake_spec.rb b/spec/tasks/gitlab/artifacts/check_rake_spec.rb
index d495b08aca076ef8b084899ced06bd0171cb14d2..04015f0e21a17648d3de7a7a8514b5de3a5b7cc4 100644
--- a/spec/tasks/gitlab/artifacts/check_rake_spec.rb
+++ b/spec/tasks/gitlab/artifacts/check_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:artifacts rake tasks' do
diff --git a/spec/tasks/gitlab/artifacts/migrate_rake_spec.rb b/spec/tasks/gitlab/artifacts/migrate_rake_spec.rb
index afa9ff50146a5c1883787b17cd0ee6f4eeb3a943..55bfb7acd9d5b1940f924be8f05016015c07fb16 100644
--- a/spec/tasks/gitlab/artifacts/migrate_rake_spec.rb
+++ b/spec/tasks/gitlab/artifacts/migrate_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:artifacts namespace rake task' do
diff --git a/spec/tasks/gitlab/backup_rake_spec.rb b/spec/tasks/gitlab/backup_rake_spec.rb
index bdbd39475b96fb122a07f400e2bcb52d5596d89e..b307453f078682a64310c45df83e3166eef20472 100644
--- a/spec/tasks/gitlab/backup_rake_spec.rb
+++ b/spec/tasks/gitlab/backup_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'rake'
 
diff --git a/spec/tasks/gitlab/check_rake_spec.rb b/spec/tasks/gitlab/check_rake_spec.rb
index 0fcb9b269f3281d6855257601325d5a8ad20395c..1469143d2ac637e62929314b039c4f3235d26f7f 100644
--- a/spec/tasks/gitlab/check_rake_spec.rb
+++ b/spec/tasks/gitlab/check_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'check.rake' do
diff --git a/spec/tasks/gitlab/cleanup_rake_spec.rb b/spec/tasks/gitlab/cleanup_rake_spec.rb
index 6c09bb5d9f9173c25a5068474af680818147731f..3c3e5eea838b4d30117c1d2d7129e69832b6d5df 100644
--- a/spec/tasks/gitlab/cleanup_rake_spec.rb
+++ b/spec/tasks/gitlab/cleanup_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:cleanup rake tasks' do
diff --git a/spec/tasks/gitlab/db_rake_spec.rb b/spec/tasks/gitlab/db_rake_spec.rb
index 5818892d56a869e46a2014e2838567f2150e5168..49b9a572423844bfb3d40c09a4879ea3ee04387b 100644
--- a/spec/tasks/gitlab/db_rake_spec.rb
+++ b/spec/tasks/gitlab/db_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'rake'
 
diff --git a/spec/tasks/gitlab/git_rake_spec.rb b/spec/tasks/gitlab/git_rake_spec.rb
index 57b006e1a393c0907c0944af389a43b48630840b..b8156e55ec7b2e0e63c3ee8fbb54390b64ebcb36 100644
--- a/spec/tasks/gitlab/git_rake_spec.rb
+++ b/spec/tasks/gitlab/git_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:git rake tasks' do
diff --git a/spec/tasks/gitlab/gitaly_rake_spec.rb b/spec/tasks/gitlab/gitaly_rake_spec.rb
index 2f3fc7839c1b01c34b482c39011c809f6a2abd02..0cc92680582cc34e5f8687a7b1e8aabfe0e9e676 100644
--- a/spec/tasks/gitlab/gitaly_rake_spec.rb
+++ b/spec/tasks/gitlab/gitaly_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:gitaly namespace rake task' do
diff --git a/spec/tasks/gitlab/info_rake_spec.rb b/spec/tasks/gitlab/info_rake_spec.rb
index ca74378a12a5a545bcc0066bff388b4ae3f0c920..8d6b3985380011337f61b1687a76dc14de71f158 100644
--- a/spec/tasks/gitlab/info_rake_spec.rb
+++ b/spec/tasks/gitlab/info_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:env:info' do
diff --git a/spec/tasks/gitlab/ldap_rake_spec.rb b/spec/tasks/gitlab/ldap_rake_spec.rb
index 279234f2887cdff91b7ac04e05c8f4b691a1fde1..bbc3f6250886619b81e2116390d5134124d603c4 100644
--- a/spec/tasks/gitlab/ldap_rake_spec.rb
+++ b/spec/tasks/gitlab/ldap_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:ldap:rename_provider rake task' do
diff --git a/spec/tasks/gitlab/lfs/check_rake_spec.rb b/spec/tasks/gitlab/lfs/check_rake_spec.rb
index 2610edf8bac9a94609747bd5a9875c13c8a3accc..3d698efdcb627f24b48f29f8bf7655e85c80ad8e 100644
--- a/spec/tasks/gitlab/lfs/check_rake_spec.rb
+++ b/spec/tasks/gitlab/lfs/check_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:lfs rake tasks' do
diff --git a/spec/tasks/gitlab/lfs/migrate_rake_spec.rb b/spec/tasks/gitlab/lfs/migrate_rake_spec.rb
index a85a0031a6cc33dfe076e18254a2f86773acc974..fc7be0eebcdac9b9103274955793f5870f7ad941 100644
--- a/spec/tasks/gitlab/lfs/migrate_rake_spec.rb
+++ b/spec/tasks/gitlab/lfs/migrate_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:lfs namespace rake task' do
diff --git a/spec/tasks/gitlab/shell_rake_spec.rb b/spec/tasks/gitlab/shell_rake_spec.rb
index c3e912b02c51a8191519911a913b563d9463bc75..e3b7967bd193aa953b59e4e5852304d2ec6d1282 100644
--- a/spec/tasks/gitlab/shell_rake_spec.rb
+++ b/spec/tasks/gitlab/shell_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:shell rake tasks' do
diff --git a/spec/tasks/gitlab/storage_rake_spec.rb b/spec/tasks/gitlab/storage_rake_spec.rb
index 0e47408fc7223a60ec23cfce4b4d3f6dee9b52d3..ae11e0910000c5dec2bdb2ac96e8f9d5d26dd219 100644
--- a/spec/tasks/gitlab/storage_rake_spec.rb
+++ b/spec/tasks/gitlab/storage_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'rake gitlab:storage:*', :sidekiq do
diff --git a/spec/tasks/gitlab/task_helpers_spec.rb b/spec/tasks/gitlab/task_helpers_spec.rb
index e9322ec49317ae495f39827e726b2bfb757d53a2..4b4f7d7c956e32afad4c34a375d54d67555864d1 100644
--- a/spec/tasks/gitlab/task_helpers_spec.rb
+++ b/spec/tasks/gitlab/task_helpers_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 class TestHelpersTest
diff --git a/spec/tasks/gitlab/uploads/check_rake_spec.rb b/spec/tasks/gitlab/uploads/check_rake_spec.rb
index 5d597c66133008a0bf13bd50b178fd0a8dbeb953..91f0cedb24601047b79708acc2625644b981eeb6 100644
--- a/spec/tasks/gitlab/uploads/check_rake_spec.rb
+++ b/spec/tasks/gitlab/uploads/check_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:uploads rake tasks' do
diff --git a/spec/tasks/gitlab/uploads/migrate_rake_spec.rb b/spec/tasks/gitlab/uploads/migrate_rake_spec.rb
index 8d1e355a7d32ab2acf4cf235e150cb044b248c65..2f773bdfeec26b72fa3f87d787522057a96e0bbf 100644
--- a/spec/tasks/gitlab/uploads/migrate_rake_spec.rb
+++ b/spec/tasks/gitlab/uploads/migrate_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:uploads:migrate and migrate_to_local rake tasks' do
diff --git a/spec/tasks/gitlab/web_hook_rake_spec.rb b/spec/tasks/gitlab/web_hook_rake_spec.rb
index 7bdf33ff6b08cfd119aefad6f32e90e7ffdfd3ff..be31507000dd4132daf87c58055b2f4935eefd5c 100644
--- a/spec/tasks/gitlab/web_hook_rake_spec.rb
+++ b/spec/tasks/gitlab/web_hook_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:web_hook namespace rake tasks' do
diff --git a/spec/tasks/gitlab/workhorse_rake_spec.rb b/spec/tasks/gitlab/workhorse_rake_spec.rb
index 42516d36c677e4bd7ecedfe566f99afbf4aa03cb..b7877a84185800023cb36fe5e076447696e7c540 100644
--- a/spec/tasks/gitlab/workhorse_rake_spec.rb
+++ b/spec/tasks/gitlab/workhorse_rake_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'gitlab:workhorse namespace rake task' do
diff --git a/spec/tasks/tokens_spec.rb b/spec/tasks/tokens_spec.rb
index 4188e7caccbf2f8416a73f5dbc1bcd0a3dcf2369..9c69155056aafc62bb9fba3f09ba9e0141199590 100644
--- a/spec/tasks/tokens_spec.rb
+++ b/spec/tasks/tokens_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake_helper'
 
 describe 'tokens rake tasks' do