diff --git a/Gemfile.lock b/Gemfile.lock
index 7291a84..69b9e4d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -149,7 +149,7 @@ GEM
       method_source (~> 0.8.1)
       slop (~> 3.4)
     public_suffix (1.5.3)
-    rake (11.1.2)
+    rake (12.3.3)
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)