diff --git a/Gemfile b/Gemfile
index 8fcde741..7cfb6267 100644
--- a/Gemfile
+++ b/Gemfile
@@ -16,7 +16,7 @@ gem "selenium-webdriver", "3.142.6"
 gem "test-unit", "3.3.3"
 
 group :test do
-  gem "govuk-lint", "~> 3.11.5"
+  gem "govuk-lint", "~> 4.0.0"
   gem "rubocop", "~> 0.74.0"
   gem "rubocop-rspec", "1.39.0"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index c2a38fdd..5a44216c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (7.0.4.3)
+    activesupport (7.0.7.2)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
@@ -56,16 +56,16 @@ GEM
       unf (>= 0.0.5, < 1.0.0)
     ffi (1.15.5)
     gherkin (4.1.3)
-    govuk-lint (3.11.5)
+    govuk-lint (4.0.1)
       rubocop (~> 0.72)
       rubocop-rails (~> 2)
       rubocop-rspec (~> 1.28)
       scss_lint
     http-cookie (1.0.3)
       domain_name (~> 0.5)
-    i18n (1.12.0)
+    i18n (1.14.1)
       concurrent-ruby (~> 1.0)
-    jaro_winkler (1.5.4)
+    jaro_winkler (1.5.6)
     jmespath (1.6.1)
     json (2.6.3)
     jwt (2.6.0)
@@ -77,7 +77,7 @@ GEM
     mime-types-data (3.2020.0512)
     mini_mime (1.1.2)
     mini_portile2 (2.8.1)
-    minitest (5.18.0)
+    minitest (5.19.0)
     multi_json (1.14.1)
     multi_test (0.1.2)
     netrc (0.11.0)
@@ -86,18 +86,19 @@ GEM
       racc (~> 1.4)
     notifications-ruby-client (5.4.0)
       jwt (>= 1.5, < 3)
-    parallel (1.22.1)
+    parallel (1.23.0)
     parallel_tests (2.18.0)
       parallel
-    parser (3.1.2.1)
+    parser (3.2.2.3)
       ast (~> 2.4.1)
+      racc
     power_assert (1.2.0)
     pry (0.14.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (5.0.1)
     racc (1.6.2)
-    rack (3.0.7)
+    rack (3.0.8)
     rack-test (2.0.2)
       rack (>= 1.3)
     rainbow (3.1.1)
@@ -140,14 +141,14 @@ GEM
     rubocop-rspec (1.39.0)
       rubocop (>= 0.68.1)
     ruby-prof (0.18.0)
-    ruby-progressbar (1.11.0)
+    ruby-progressbar (1.13.0)
     rubyzip (2.3.0)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
-    scss_lint (0.59.0)
+    scss_lint (0.60.0)
       sass (~> 3.5, >= 3.5.5)
     selenium-webdriver (3.142.6)
       childprocess (>= 0.5, < 4.0)
@@ -171,7 +172,7 @@ DEPENDENCIES
   capybara (= 3.35.3)
   capybara-screenshot (= 1.0.25)
   cucumber (= 2.4.0)
-  govuk-lint (~> 3.11.5)
+  govuk-lint (~> 4.0.0)
   json (= 2.6.3)
   launchy (= 2.5.2)
   notifications-ruby-client (= 5.4.0)