diff --git a/Gemfile.lock b/Gemfile.lock
index 8b0386858..9fea70460 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -89,7 +89,7 @@ GEM
       debug_inspector (>= 1.2.0)
     bootsnap (1.18.3)
       msgpack (~> 1.2)
-    brakeman (6.1.1)
+    brakeman (6.1.2)
       racc
     builder (3.2.4)
     byebug (11.1.3)
@@ -173,7 +173,7 @@ GEM
       sprockets-rails
     govuk_schemas (5.0.2)
       json-schema (>= 2.8, < 4.4)
-    govuk_test (4.0.2)
+    govuk_test (4.1.0)
       brakeman (>= 5.0.2)
       capybara (>= 3.36)
       puma
@@ -591,7 +591,8 @@ GEM
     sass-embedded (1.69.7)
       google-protobuf (~> 3.25)
       rake (>= 13.0.0)
-    selenium-webdriver (4.16.0)
+    selenium-webdriver (4.21.1)
+      base64 (~> 0.2)
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)