diff --git a/Gemfile.lock b/Gemfile.lock
index ca25ada..80d4887 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -128,8 +128,8 @@ GEM
       railties (~> 3.2.0)
       sass (>= 3.1.10)
       tilt (~> 1.3)
-    simplecov (0.6.2)
-      multi_json (~> 1.3)
+    simplecov (0.6.4)
+      multi_json (~> 1.0)
       simplecov-html (~> 0.5.3)
     simplecov-html (0.5.3)
     sprockets (2.1.3)