diff --git a/Gemfile.lock b/Gemfile.lock
index be91f149..681141a7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -597,7 +597,7 @@ GEM
     thor (1.3.2)
     thread_safe (0.3.6)
     tilt (2.4.0)
-    timeout (0.4.2)
+    timeout (0.4.3)
     tty-which (0.5.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)