diff --git a/Gemfile.lock b/Gemfile.lock
index 23c2b38..4181292 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -79,7 +79,7 @@ GEM
       activesupport (= 4.1.8)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (10.4.0)
+    rake (12.3.3)
     rdoc (4.1.2)
       json (~> 1.4)
     ref (1.0.5)