diff --git a/Gemfile.lock b/Gemfile.lock
index b77ac1a..93ad660 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -50,7 +50,7 @@ GEM
       method_source (~> 0.9.0)
     psych (3.2.0)
     rainbow (3.0.0)
-    rake (12.3.3)
+    rake (13.0.1)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)