diff --git a/Gemfile b/Gemfile
index 8b5bea46a..d5c7d69fa 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,6 +5,7 @@ gem "rails", "6.1.4.1"
 gem "actionpack-page_caching"
 gem "gds-api-adapters"
 gem "govuk_app_config"
+gem "govuk_personalisation"
 gem "govuk_publishing_components"
 gem "govuk_template"
 gem "nokogiri"
diff --git a/Gemfile.lock b/Gemfile.lock
index 78cc3dc9e..2591beae0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -130,6 +130,9 @@ GEM
       sentry-ruby (~> 4.5.0)
       statsd-ruby (~> 1.5.0)
       unicorn (>= 5.4, < 5.9)
+    govuk_personalisation (0.7.0)
+      plek (>= 1.9.0)
+      rails (~> 6)
     govuk_publishing_components (25.7.0)
       govuk_app_config
       kramdown
@@ -366,6 +369,7 @@ DEPENDENCIES
   gds-api-adapters
   govuk-content-schema-test-helpers
   govuk_app_config
+  govuk_personalisation
   govuk_publishing_components
   govuk_template
   govuk_test
diff --git a/app/views/root/_base.html.erb b/app/views/root/_base.html.erb
index 0719d6442..d75db15f0 100644
--- a/app/views/root/_base.html.erb
+++ b/app/views/root/_base.html.erb
@@ -46,7 +46,7 @@
       navigation_items: [ # Remember to update the links in _gem_base.html.erb as well.
       {
         text: "Account",
-        href: Plek.new.website_root + "/account/home",
+        href: GovukPersonalisation::Urls.your_account,
         data: {
           module: "explicit-cross-domain-links",
           link_for: "accounts-signed-in",
@@ -54,7 +54,7 @@
       },
       {
         text: "Sign out",
-        href: Plek.new.website_root + "/sign-out",
+        href: GovukPersonalisation::Urls.sign_out,
         data: {
           module: "explicit-cross-domain-links",
           link_for: "accounts-signed-in",
@@ -62,7 +62,7 @@
       },
       {
         text: "Sign in",
-        href: Plek.new.website_root + "/sign-in",
+        href: GovukPersonalisation::Urls.sign_in,
         data: {
           module: "explicit-cross-domain-links",
           link_for: "accounts-signed-out",
diff --git a/app/views/root/_gem_base.html.erb b/app/views/root/_gem_base.html.erb
index beb7695c6..1cfe5db4c 100644
--- a/app/views/root/_gem_base.html.erb
+++ b/app/views/root/_gem_base.html.erb
@@ -36,7 +36,7 @@
   navigation_items: [ # Remember to update the links in _base.html.erb as well.
   {
     text: "Account",
-    href: Plek.new.website_root + "/account/home",
+    href: GovukPersonalisation::Urls.your_account,
     data: {
       module: "explicit-cross-domain-links",
       link_for: "accounts-signed-in",
@@ -44,7 +44,7 @@
   },
   {
     text: "Sign out",
-    href: Plek.new.website_root + "/sign-out",
+    href: GovukPersonalisation::Urls.sign_out,
     data: {
       module: "explicit-cross-domain-links",
       link_for: "accounts-signed-in",
@@ -52,7 +52,7 @@
   },
   {
     text: "Sign in",
-    href: Plek.new.website_root + "/sign-in",
+    href: GovukPersonalisation::Urls.sign_in,
     data: {
       module: "explicit-cross-domain-links",
       link_for: "accounts-signed-out",
diff --git a/app/views/root/gem_layout_account.html.erb b/app/views/root/gem_layout_account.html.erb
index 4d7b5854e..2331e0c9d 100644
--- a/app/views/root/gem_layout_account.html.erb
+++ b/app/views/root/gem_layout_account.html.erb
@@ -1,5 +1,5 @@
 <%= render partial: "gem_base", locals: {
   product_name: "Account",
-  logo_link: Plek.new.website_root + "/account/home",
+  logo_link: GovukPersonalisation::Urls.your_account,
   omit_feedback_form: true,
 } %>
diff --git a/app/views/root/gem_layout_account_manager.html.erb b/app/views/root/gem_layout_account_manager.html.erb
index ea7cd1ebd..a9b8b5638 100644
--- a/app/views/root/gem_layout_account_manager.html.erb
+++ b/app/views/root/gem_layout_account_manager.html.erb
@@ -1,6 +1,6 @@
 <%= render partial: "gem_base", locals: {
   product_name: "Account",
-  logo_link: Plek.new.website_root + "/account/home",
+  logo_link: GovukPersonalisation::Urls.your_account,
   omit_feedback_form: true,
   omit_global_banner: true,
   omit_user_satisfaction_survey: true,