diff --git a/Gemfile.lock b/Gemfile.lock
index 281b7bcce..037d8ab01 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -82,7 +82,7 @@ GEM
     ast (2.4.2)
     base64 (0.2.0)
     bcrypt (3.1.20)
-    benchmark (0.3.0)
+    benchmark (0.4.0)
     better_errors (2.10.1)
       erubi (>= 1.0.0)
       rack (>= 0.9.0)