diff --git a/Gemfile.lock b/Gemfile.lock
index dc7ee6287..d202fc842 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -184,7 +184,7 @@ GEM
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
-    mocha (1.7.0)
+    mocha (1.8.0)
       metaclass (~> 0.0.1)
     money (6.13.1)
       i18n (>= 0.6.4, <= 2)