diff --git a/Gemfile.lock b/Gemfile.lock
index 029ec77..21e3d51 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -33,7 +33,7 @@ GEM
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
     minitest (5.8.4)
-    rake (11.1.2)
+    rake (12.3.3)
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)