diff --git a/Gemfile.lock b/Gemfile.lock
index ea009c5..a658f61 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -40,7 +40,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rake (10.3.2)
+    rake (12.3.3)
     require_all (1.3.2)
     slop (3.6.0)
     thread_safe (0.3.4)