diff --git a/Gemfile.lock b/Gemfile.lock
index a5164e7e3..e94b27d5f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -111,8 +111,7 @@ GEM
     debug_inspector (1.1.0)
     diff-lcs (1.5.0)
     docile (1.4.0)
-    domain_name (0.5.20190701)
-      unf (>= 0.0.5, < 1.0.0)
+    domain_name (0.6.20231109)
     drb (2.2.0)
       ruby2_keywords
     erubi (1.12.0)
@@ -198,11 +197,11 @@ GEM
       rails (>= 6)
       rouge
       sprockets (>= 3)
-    govuk_sidekiq (7.1.4)
+    govuk_sidekiq (7.1.5)
       gds-api-adapters (>= 19.1.0)
       govuk_app_config (>= 1.1)
       redis-namespace (~> 1.6)
-      sidekiq (> 6.5.10, < 7)
+      sidekiq (~> 6.5, >= 6.5.12)
     govuk_test (4.0.1)
       brakeman (>= 5.0.2)
       capybara (>= 3.36)
@@ -507,7 +506,7 @@ GEM
       method_source (~> 1.0)
     psych (5.1.1.1)
       stringio
-    public_suffix (5.0.3)
+    public_suffix (5.0.4)
     puma (6.4.0)
       nio4r (~> 2.0)
     racc (1.7.3)
@@ -560,7 +559,7 @@ GEM
     redis-namespace (1.11.0)
       redis (>= 4)
     regexp_parser (2.8.2)
-    reline (0.4.0)
+    reline (0.4.1)
       io-console (~> 0.5)
     request_store (1.5.1)
       rack (>= 1.4)
@@ -674,7 +673,7 @@ GEM
       activesupport (>= 5.2)
       sprockets (>= 3.0.0)
     statsd-ruby (1.5.0)
-    stringio (3.0.9)
+    stringio (3.1.0)
     thor (1.3.0)
     tilt (2.0.11)
     timecop (0.9.8)
@@ -685,9 +684,6 @@ GEM
       concurrent-ruby (~> 1.0)
     uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)
-    unf (0.1.4)
-      unf_ext
-    unf_ext (0.0.9)
     unicode-display_width (2.4.2)
     version_gem (1.1.3)
     warden (1.2.9)