diff --git a/Gemfile.lock b/Gemfile.lock
index ec8b585..dad1b3c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -16,7 +16,7 @@ GEM
       coderay (~> 1.0.5)
       method_source (~> 0.8)
       slop (~> 3.3.1)
-    rake (0.9.2.2)
+    rake (13.0.1)
     rdoc (3.12)
       json (~> 1.4)
     rspec (2.8.0)