diff --git a/Gemfile.lock b/Gemfile.lock
index ad7604f..88486bb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -166,7 +166,7 @@ GEM
     marcel (1.1.0)
     mini_mime (1.1.5)
     minitest (5.26.1)
-    mocha (3.0.2)
+    mocha (3.1.0)
       ruby2_keywords (>= 0.0.5)
     msgpack (1.8.0)
     multi_json (1.16.0)