diff --git a/Gemfile.lock b/Gemfile.lock
index 624f6fd..e87d477 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -83,7 +83,7 @@ GEM
     polyglot (0.3.3)
     power_assert (1.1.1)
     rack (1.6.8)
-    rake (10.3.2)
+    rake (12.3.3)
     rdoc (4.3.0)
     redcarpet (3.4.0)
     rspec (3.1.0)