diff --git a/Gemfile.lock b/Gemfile.lock
index 96080fc..d11485e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -46,7 +46,7 @@ GEM
     pygments.rb (0.5.4)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.1.0)
-    rake (10.3.2)
+    rake (12.3.3)
     rb-fsevent (0.9.4)
     rb-inotify (0.9.4)
       ffi (>= 0.5.0)