diff --git a/mailit/Gemfile.lock b/mailit/Gemfile.lock
index 6a32aa6..3c4f522 100644
--- a/mailit/Gemfile.lock
+++ b/mailit/Gemfile.lock
@@ -83,7 +83,7 @@ GEM
       rake (>= 0.8.7)
       rdoc (~> 3.4)
       thor (~> 0.14.6)
-    rake (0.9.2.2)
+    rake (13.0.1)
     rdoc (3.12)
       json (~> 1.4)
     roadie (2.2.0)