diff --git a/Gemfile.lock b/Gemfile.lock
index 195dd05..248c75d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -129,7 +129,7 @@ GEM
     polyglot (0.3.3)
     rack (1.4.0)
     rainbow (1.1.3)
-    rake (0.9.2.2)
+    rake (13.0.3)
     rspec (2.6.0)
       rspec-core (~> 2.6.0)
       rspec-expectations (~> 2.6.0)