diff --git a/src/Worker.php b/src/Worker.php
index b882828c..583e6e06 100644
--- a/src/Worker.php
+++ b/src/Worker.php
@@ -630,6 +630,7 @@ private function registerWithRetry(): ?array
                         'query_tasks',
                         'workflow_updates',
                         'durable_history_replay',
+                        'workflow_entry_arguments_validation',
                         'graceful_shutdown',
                         'message_streams',
                         'memo_upserts',
diff --git a/tests/WorkerAuthoringTest.php b/tests/WorkerAuthoringTest.php
index c96b40c3..b8918bfe 100644
--- a/tests/WorkerAuthoringTest.php
+++ b/tests/WorkerAuthoringTest.php
@@ -172,6 +172,7 @@ public function testHighLevelWorkerAdvertisesTheCompleteManagedCapabilitySet():
                     'query_tasks',
                     'workflow_updates',
                     'durable_history_replay',
+                    'workflow_entry_arguments_validation',
                     'graceful_shutdown',
                     'message_streams',
                     'memo_upserts',