diff --git a/Gemfile.lock b/Gemfile.lock
index eb12b04..a42bfc8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -20,7 +20,7 @@ GEM
     maruku (0.6.1)
       syntax (>= 1.0.0)
     posix-spawn (0.3.6)
-    rake (0.9.2.2)
+    rake (12.3.3)
     sass (3.2.1)
     syntax (1.0.0)