diff --git a/Gemfile.lock b/Gemfile.lock
index 5cb324e127..ce0d4506a7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.2)
-    benchmark (0.3.0)
+    benchmark (0.4.0)
     coderay (1.1.3)
     concurrent-ruby (1.3.4)
     docile (1.4.0)