diff --git a/app/models/hackatime/heartbeat.rb b/app/models/hackatime/heartbeat.rb
index c093514..d955d26 100644
--- a/app/models/hackatime/heartbeat.rb
+++ b/app/models/hackatime/heartbeat.rb
@@ -1,8 +1,6 @@
 class Hackatime::Heartbeat < HackatimeRecord
   include Heartbeatable
 
-  heartbeat_timeout_duration 2.minutes
-
   def self.cached_recent_count
     Rails.cache.fetch("heartbeats_recent_count", expires_in: 5.minutes) do
       recent.size
diff --git a/app/models/heartbeat.rb b/app/models/heartbeat.rb
index bab8872..c0c2df2 100644
--- a/app/models/heartbeat.rb
+++ b/app/models/heartbeat.rb
@@ -3,8 +3,6 @@ class Heartbeat < ApplicationRecord
 
   include Heartbeatable
 
-  heartbeat_timeout_duration 2.minutes
-
   scope :today, -> { where(time: Time.current.beginning_of_day..Time.current.end_of_day) }
 
   enum :source_type, {