diff --git a/Gemfile.lock b/Gemfile.lock
index 7c319cc..486607b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -22,7 +22,7 @@ GEM
     maruku (0.6.1)
       syntax (>= 1.0.0)
     posix-spawn (0.3.6)
-    rake (0.9.2.2)
+    rake (12.3.3)
     syntax (1.0.0)
     thor (0.16.0)