diff --git a/Gemfile.lock b/Gemfile.lock
index 9deef4b2eb3..479e651b9d5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -455,7 +455,7 @@ GEM
     minitest-fail-fast (0.1.0)
       minitest (~> 5)
     minitest-stub-const (0.6)
-    mocha (2.6.1)
+    mocha (2.7.1)
       ruby2_keywords (>= 0.0.5)
     msgpack (1.7.2)
     multi_json (1.15.0)