diff --git a/Gemfile.lock b/Gemfile.lock
index 2c33539..5bce04b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -103,7 +103,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     raindrops (0.19.0)
-    rake (12.3.1)
+    rake (13.0.1)
     rdoc (6.0.4)
     rest-client (2.0.2)
       http-cookie (>= 1.0.2, < 2.0)