diff --git a/Gemfile.lock b/Gemfile.lock
index e9c191a..606822c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,7 +15,7 @@ GEM
       rake
       rdoc
     json (1.6.5)
-    rake (0.9.2.2)
+    rake (12.3.3)
     rdoc (3.12)
       json (~> 1.4)
     rspec (1.2.9)