diff --git a/Gemfile.lock b/Gemfile.lock
index 72bf1e9426..07ff2d5f3c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -113,7 +113,7 @@ GEM
     mini_mime (1.1.2)
     mini_portile2 (2.8.1)
     minitest (5.18.1)
-    mocha (2.0.4)
+    mocha (2.1.0)
       ruby2_keywords (>= 0.0.5)
     msgpack (1.7.0)
     nio4r (2.5.9)