diff --git a/Gemfile.lock b/Gemfile.lock
index dc51af9..15c64bf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -59,7 +59,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     rainbow (3.0.0)
-    rake (12.3.1)
+    rake (13.0.6)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)