diff --git a/Gemfile.lock b/Gemfile.lock
index f77d4f717..dd4f43c4a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -112,11 +112,11 @@ GEM
       rest-client (~> 2.0)
     globalid (1.0.0)
       activesupport (>= 5.0)
-    govuk_app_config (4.9.0)
+    govuk_app_config (4.10.1)
       logstasher (~> 2.1)
       plek (~> 4)
       prometheus_exporter (~> 2.0)
-      puma (~> 5.6)
+      puma (>= 5.6, < 7.0)
       rack-proxy (~> 0.7)
       sentry-rails (~> 5.3)
       sentry-ruby (~> 5.3)