diff --git a/Gemfile.lock b/Gemfile.lock
index ff195b954..f2d4009cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -114,7 +114,7 @@ GEM
     globalid (0.4.2)
       activesupport (>= 4.2.0)
     govuk_ab_testing (2.4.2)
-    govuk_app_config (2.8.3)
+    govuk_app_config (2.8.4)
       logstasher (>= 1.2.2, < 2.2.0)
       sentry-raven (~> 3.1.1)
       statsd-ruby (~> 1.5.0)