diff --git a/CHANGELOG.md b/CHANGELOG.md
index 560b093412..747da7493b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Unreleased
 
+## New features
+
+- [Pull request #837: Update GOV.UK Frontend to version 3.4.0](https://github.com/alphagov/govuk-prototype-kit/pull/837).
+
 ## Fixes
 
 - [Pull request #815: Prevent exceptions thrown from 'compatibility mode' routes from being silently caught, disabling compatibility mode](https://github.com/alphagov/govuk-prototype-kit/pull/815)
diff --git a/package.json b/package.json
index 59af99f24d..313a1b03b4 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "express-writer": "0.0.4",
     "fancy-log": "^1.3.3",
     "govuk-elements-sass": "^3.1.3",
-    "govuk-frontend": "^3.3.0",
+    "govuk-frontend": "^3.4.0",
     "govuk_frontend_toolkit": "^7.5.0",
     "govuk_template_jinja": "^0.24.1",
     "gulp": "^4.0.0",