diff --git a/Gemfile b/Gemfile
index 8611d9c48..4b8a7fb64 100644
--- a/Gemfile
+++ b/Gemfile
@@ -23,7 +23,7 @@ gem 'slimmer', '~> 13.1'
 
 group :development, :test do
   gem 'govuk-lint'
-  gem 'govuk_schemas', '~> 3.3'
+  gem 'govuk_schemas', '~> 4.0'
   gem 'jasmine-rails'
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 61bcb944c..89b16adc8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -127,7 +127,7 @@ GEM
       rake
       rouge
       sassc-rails (>= 2.0.1)
-    govuk_schemas (3.3.0)
+    govuk_schemas (4.0.0)
       json-schema (~> 2.8.0)
     govuk_test (1.0.0)
       capybara
@@ -369,7 +369,7 @@ DEPENDENCIES
   govuk_app_config (~> 1.20)
   govuk_frontend_toolkit (~> 8.2.0)
   govuk_publishing_components (~> 17.18.0)
-  govuk_schemas (~> 3.3)
+  govuk_schemas (~> 4.0)
   govuk_test
   htmlentities (~> 4.3)
   jasmine-rails