diff --git a/apps/transport/lib/transport_web/plugs/worker_healthcheck.ex b/apps/transport/lib/transport_web/plugs/worker_healthcheck.ex
index fedbc61644..269386d259 100644
--- a/apps/transport/lib/transport_web/plugs/worker_healthcheck.ex
+++ b/apps/transport/lib/transport_web/plugs/worker_healthcheck.ex
@@ -52,7 +52,7 @@ defmodule TransportWeb.Plugs.WorkerHealthcheck do
 
   def app_started_recently? do
     {delay, unit} = @app_start_waiting_delay
-    DateTime.before?(DateTime.utc_now(), DateTime.add(app_start_datetime(), delay, unit))
+    DateTime.diff(DateTime.utc_now(), app_start_datetime(), unit) < delay
   end
 
   def app_start_datetime do
diff --git a/apps/transport/test/transport_web/plugs/worker_healthcheck_test.exs b/apps/transport/test/transport_web/plugs/worker_healthcheck_test.exs
index 61ef64db82..ce6da59f9d 100644
--- a/apps/transport/test/transport_web/plugs/worker_healthcheck_test.exs
+++ b/apps/transport/test/transport_web/plugs/worker_healthcheck_test.exs
@@ -1,5 +1,6 @@
 defmodule TransportWeb.Plugs.WorkerHealthcheckTest do
-  # async: false is required because we use real in-memory caching in these tests
+  # async: false is required because we use real in-memory caching in these tests,
+  # and we swap application config (shared state)
   use TransportWeb.ConnCase, async: false
   alias TransportWeb.Plugs.WorkerHealthcheck