diff --git a/Gemfile.lock b/Gemfile.lock
index 3304d98563f..d6781b7d586 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -180,7 +180,7 @@ GEM
       mini_mime (>= 0.1.1)
     maxminddb (0.1.22)
     memory_profiler (0.9.14)
-    message_bus (3.3.2)
+    message_bus (3.3.4)
       rack (>= 1.1.3)
     method_source (1.0.0)
     mini_mime (1.0.2)