diff --git a/Gemfile.lock b/Gemfile.lock
index 2e26dd5f6..75bfe9407 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -124,7 +124,7 @@ GEM
     globalid (1.0.0)
       activesupport (>= 5.0)
     govuk_ab_testing (2.4.2)
-    govuk_app_config (4.12.0)
+    govuk_app_config (4.13.0)
       logstasher (~> 2.1)
       plek (>= 4, < 6)
       prometheus_exporter (~> 2.0)
@@ -235,7 +235,7 @@ GEM
     puma (6.0.2)
       nio4r (~> 2.0)
     racc (1.6.2)
-    rack (2.2.5)
+    rack (2.2.6)
     rack-proxy (0.7.4)
       rack
     rack-test (2.0.2)