diff --git a/CHANGELOG.md b/CHANGELOG.md
index ad881e2..d0093de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -43,6 +43,10 @@ Section Order:
 
 <!-- Your changes go here -->
 
+### Removed
+
+- Unexpected argument from task chain
+
 ## [3.5.0] - 2026-01-23
 
 > [!IMPORTANT]
diff --git a/README.md b/README.md
index 809b5bc..34a4526 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,12 @@ ______________________________________________________________________
 >
 > Please make sure you meet all preconditions before you proceed.
 
+> [!IMPORTANT]
+>
+> This app is utilising features that are only available in Alliance Auth >= 4.12.0.
+> Please make sure to update your Alliance Auth instance before installing this app,
+> otherwise, an update to Alliance Auth will be pulled in unsupervised.
+
 - AA Sovereignty Timer is a plugin for Alliance Auth. If you don't have Alliance
   Auth running already, please install it first before proceeding. (see the official
   [AA installation guide](https://allianceauth.readthedocs.io/en/latest/installation/allianceauth.html) for details)
diff --git a/sovtimer/tasks.py b/sovtimer/tasks.py
index 40e78d1..496986f 100644
--- a/sovtimer/tasks.py
+++ b/sovtimer/tasks.py
@@ -73,8 +73,8 @@ def run_sov_campaign_updates() -> None:
 
     # Chain the update tasks for structures and campaigns, and execute them asynchronously
     chain(
-        update_sov_structures.s().set(priority=TASK_PRIORITY, once=TASK_ONCE_ARGS),
-        update_sov_campaigns.s().set(priority=TASK_PRIORITY, once=TASK_ONCE_ARGS),
+        update_sov_structures.s().set(priority=TASK_PRIORITY),
+        update_sov_campaigns.s().set(priority=TASK_PRIORITY),
     ).apply_async()
 
 
diff --git a/sovtimer/tests/test_tasks.py b/sovtimer/tests/test_tasks.py
index b541336..4601bf1 100644
--- a/sovtimer/tests/test_tasks.py
+++ b/sovtimer/tests/test_tasks.py
@@ -12,7 +12,6 @@
 import sovtimer.tasks as tasks_module
 from sovtimer.models import Campaign, SovereigntyStructure
 from sovtimer.tasks import (
-    TASK_ONCE_ARGS,
     TASK_PRIORITY,
     run_sov_campaign_updates,
     update_sov_campaigns,
@@ -49,11 +48,9 @@ def test_updates_both_structures_and_campaigns(
 
         struct_kwargs = mock_update_structures.return_value.set.call_args.kwargs
         self.assertEqual(struct_kwargs.get("priority"), TASK_PRIORITY)
-        self.assertEqual(struct_kwargs.get("once"), TASK_ONCE_ARGS)
 
         camp_kwargs = mock_update_campaigns.return_value.set.call_args.kwargs
         self.assertEqual(camp_kwargs.get("priority"), TASK_PRIORITY)
-        self.assertEqual(camp_kwargs.get("once"), TASK_ONCE_ARGS)
 
     @patch("sovtimer.tasks.update_sov_structures.s")
     @patch("sovtimer.tasks.update_sov_campaigns.s")