diff --git a/lms/envs/common.py b/lms/envs/common.py
index 29e90eddfb..d74c28e756 100644
--- a/lms/envs/common.py
+++ b/lms/envs/common.py
@@ -2844,15 +2844,6 @@ DEBUG_TOOLBAR_PATCH_SETTINGS = False
 
 ################################# CELERY ######################################
 
-# Until we've tested protocol 2, stay with protocol 1. It should be
-# fine to just switch to protocol 2, since we're well past celery
-# version 3.1.25 (the first version to support it) but we'll want to
-# test this in a stage environment first.
-#
-# - Docs: https://docs.celeryq.dev/en/stable/history/whatsnew-4.0.html#new-task-message-protocol
-# - Ticket: https://github.com/edx/edx-arch-experiments/issues/800
-CELERY_TASK_PROTOCOL = 1
-
 CELERY_IMPORTS = [
     # Since xblock-poll is not a Django app, and XBlocks don't get auto-imported
     # by celery workers, its tasks will not get auto-discovered: