diff --git a/Gemfile.lock b/Gemfile.lock
index 954c63796..06fb990cf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -119,7 +119,7 @@ GEM
     docile (1.4.0)
     domain_name (0.6.20240107)
     drb (2.2.1)
-    erubi (1.13.0)
+    erubi (1.13.1)
     execjs (2.9.1)
     faker (3.4.2)
       i18n (>= 1.8.11, < 2)
@@ -182,9 +182,11 @@ GEM
       capybara (>= 3.36)
       puma
       selenium-webdriver (>= 4.0)
-    govuk_web_banners (0.2.0)
+    govuk_web_banners (0.3.0)
+      govuk_app_config
       govuk_publishing_components
       rails (>= 7)
+      redis
     hashdiff (1.1.1)
     highline (3.0.1)
     htmlentities (4.3.4)
@@ -538,6 +540,10 @@ GEM
     rake (13.2.1)
     rdoc (6.10.0)
       psych (>= 4.0.0)
+    redis (5.3.0)
+      redis-client (>= 0.22.0)
+    redis-client (0.23.0)
+      connection_pool
     regexp_parser (2.9.3)
     reline (0.6.0)
       io-console (~> 0.5)