diff --git a/Gemfile.lock b/Gemfile.lock
index cab539f762..6d2ce4e10a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -125,8 +125,9 @@ GEM
       matrix
       ruby-rc4 (>= 0.1.5)
     concurrent-ruby (1.3.4)
-    config (5.5.1)
+    config (5.5.2)
       deep_merge (~> 1.2, >= 1.2.1)
+      ostruct
     connection_pool (2.4.1)
     cookies_eu (1.7.8)
       js_cookie_rails (~> 2.2.0)
@@ -272,6 +273,7 @@ GEM
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     observer (0.1.2)
+    ostruct (0.6.0)
     parser (3.3.2.0)
       ast (~> 2.4.1)
       racc