diff --git a/Gemfile.lock b/Gemfile.lock
index e57e0ed..bd7e837 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -122,7 +122,7 @@ GEM
       rake (>= 0.8.7)
       rdoc (~> 3.4)
       thor (>= 0.14.6, < 2.0)
-    rake (10.0.3)
+    rake (13.0.1)
     rdoc (3.12)
       json (~> 1.4)
     sass (3.1.15)
@@ -132,7 +132,6 @@ GEM
       tilt (~> 1.3)
     sendgrid (1.0.1)
       json
-      json
     sprockets (2.2.2)
       hike (~> 1.2)
       multi_json (~> 1.0)