diff --git a/lib/solid_queue/processes/registrable.rb b/lib/solid_queue/processes/registrable.rb
index 9eddf20e..084e8faf 100644
--- a/lib/solid_queue/processes/registrable.rb
+++ b/lib/solid_queue/processes/registrable.rb
@@ -53,7 +53,7 @@ def stop_heartbeat
       end
 
       def heartbeat
-        process.reload.heartbeat
+        process.with_lock(&:heartbeat)
       rescue ActiveRecord::RecordNotFound
         self.process = nil
         wake_up