diff --git a/Gemfile.lock b/Gemfile.lock
index 906b6ed765..598a8e316d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -209,7 +209,8 @@ GEM
     bcrypt-ruby (3.1.5)
       bcrypt (>= 3.1.3)
     blockenspiel (0.5.0)
-    bugsnag (5.5.0)
+    bugsnag (6.11.1)
+      concurrent-ruby (~> 1.0)
     builder (3.0.4)
     byebug (9.0.6)
     cancan (1.6.8)
@@ -257,6 +258,7 @@ GEM
       compass (~> 1.0.0)
       sass-rails (< 5.1)
       sprockets (< 4.0)
+    concurrent-ruby (1.1.4)
     connection_pool (2.2.2)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)