diff --git a/Gemfile.lock b/Gemfile.lock
index 2a3e248..12d7956 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -80,7 +80,7 @@ GEM
       activesupport (= 4.1.4)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (10.4.0)
+    rake (13.0.1)
     rdoc (4.1.2)
       json (~> 1.4)
     ref (1.0.5)