diff --git a/Gemfile.lock b/Gemfile.lock
index 8b98728029..94928befb7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -745,8 +745,7 @@ GEM
     websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.3)
-    whenever (0.9.2)
-      activesupport (>= 2.3.4)
+    whenever (0.10.0)
       chronic (>= 0.6.3)
     wicked_pdf (1.1.0)
     wkhtmltopdf-binary (0.12.4)
diff --git a/config/schedule.rb b/config/schedule.rb
index 0a868df405..edec8351ac 100644
--- a/config/schedule.rb
+++ b/config/schedule.rb
@@ -1,4 +1,5 @@
 require 'whenever'
+require 'yaml'
 
 # Learn more: http://github.com/javan/whenever