diff --git a/tests/system/providers/amazon/aws/example_batch.py b/tests/system/providers/amazon/aws/example_batch.py
index 77c5d21997364..26059a2c2fb8d 100644
--- a/tests/system/providers/amazon/aws/example_batch.py
+++ b/tests/system/providers/amazon/aws/example_batch.py
@@ -30,6 +30,7 @@
     BatchJobQueueSensor,
     BatchSensor,
 )
+from airflow.providers.amazon.aws.operators.ecs import EcsDeregisterTaskDefinitionOperator
 from airflow.utils.trigger_rule import TriggerRule
 from tests.system.providers.amazon.aws.utils import (
     ENV_ID_KEY,
@@ -240,6 +241,13 @@ def delete_job_queue(job_queue_name):
         poke_interval=10,
     )
 
+        deregister_task_definition = EcsDeregisterTaskDefinitionOperator(
+        task_id="deregister_task",
+        task_definition=f"{batch_job_definition_name}:1",
+        trigger_rule=TriggerRule.ALL_DONE,
+    )
+
+
     log_cleanup = prune_logs(
         [
             # Format: ('log group name', 'log stream prefix')