diff --git a/app/controllers/impressionist_controller.rb b/app/controllers/impressionist_controller.rb
index 4e21621..2fee16a 100644
--- a/app/controllers/impressionist_controller.rb
+++ b/app/controllers/impressionist_controller.rb
@@ -3,13 +3,21 @@ require 'digest/sha2'
 module ImpressionistController
   module ClassMethods
     def impressionist(opts={})
-      before_action { |c| c.impressionist_subapp_filter(opts) }
+      if Rails::VERSION::MAJOR >= 5
+        before_action { |c| c.impressionist_subapp_filter(opts) }
+      else
+        before_filter { |c| c.impressionist_subapp_filter(opts) }
+      end
     end
   end
 
   module InstanceMethods
     def self.included(base)
-      base.before_action :impressionist_app_filter
+      if Rails::VERSION::MAJOR >= 5
+        base.before_action :impressionist_app_filter
+      else
+        base.before_filter :impressionist_app_filter
+      end
     end
 
     def impressionist(obj,message=nil,opts={})