diff --git a/Gemfile.lock b/Gemfile.lock
index c788909..4ad1deb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -130,7 +130,7 @@ GEM
       rake (>= 0.8.7)
       rdoc (~> 3.4)
       thor (>= 0.14.6, < 2.0)
-    rake (10.0.4)
+    rake (13.0.1)
     rdoc (3.12.2)
       json (~> 1.4)
     rspec-core (2.13.1)