diff --git a/Gemfile.lock b/Gemfile.lock
index d276f7f69d..ccc8ab5f26 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -127,7 +127,7 @@ GEM
       rest-client (~> 2.0)
     globalid (0.5.2)
       activesupport (>= 5.0)
-    govuk_app_config (4.0.0)
+    govuk_app_config (4.0.1)
       logstasher (>= 1.2.2, < 2.2.0)
       sentry-rails (~> 4.5.0)
       sentry-ruby (~> 4.5.0)