diff --git a/Gemfile.lock b/Gemfile.lock
index a1466d1..0a2b4f2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,7 +48,7 @@ GEM
     psych (3.3.1)
     racc (1.5.2)
     rack (2.2.3)
-    rake (10.5.0)
+    rake (13.0.3)
     rchardet (1.8.0)
     rdoc (6.3.0)
     rspec (3.10.0)