diff --git a/runtime/chalicelib/worker/__init__.py b/runtime/chalicelib/worker/__init__.py
index b53bd19..90e8320 100644
--- a/runtime/chalicelib/worker/__init__.py
+++ b/runtime/chalicelib/worker/__init__.py
@@ -7,18 +7,11 @@
 import chalicelib.config as config_module
 import chalicelib.util.import_util as import_util
 
-if typing.TYPE_CHECKING:
-    import mypy_boto3_sqs.type_defs
-
-    type RecordType = "mypy_boto3_sqs.type_defs.MessageTypeDef"
-else:
-    type RecordType = dict[str, typing.Any]
-
-SQSEventType = typing.TypedDict("SQSEventType", {"Records": list[RecordType]})
-WorkerType = typing.Callable[[RecordType], dict[str, typing.Any]]
+WorkerType = typing.Callable[[chalice.app.SQSRecord], dict[str, typing.Any]]
 
 logger = logging.getLogger(__name__)
 workers: dict[str, WorkerType] = {}
+worker_handler_blueprint = chalice.app.Blueprint(__name__)
 
 for _workers in typing.cast(
     list[list[WorkerType]],
@@ -31,15 +24,12 @@
     workers.update({worker.__name__: worker for worker in _workers})
 
 
-def _sqs_handler(event: chalice.app.SQSEvent) -> list[dict[str, typing.Any]]:
-    parsed_event: SQSEventType = event.to_dict()
-    logger.info(f"{parsed_event=}")
-
+@worker_handler_blueprint.on_sqs_message(queue=config_module.config.infra.queue_name)
+def sqs_handler(event: chalice.app.SQSEvent) -> list[dict[str, typing.Any]]:
     results: list[dict[str, typing.Any]] = []
-    for record in parsed_event["Records"]:
+    for record in event:
         try:
-            worker_name = json.loads(record["body"])["worker"]
-            results.append(workers[worker_name](record))
+            results.append(workers[json.loads(record.body)["worker"]](record))
         except Exception as e:
             logger.error(f"Failed to handle event: {record}", exc_info=e)
             results.append({"error": "Failed to handle event"})
@@ -49,4 +39,4 @@ def _sqs_handler(event: chalice.app.SQSEvent) -> list[dict[str, typing.Any]]:
 
 
 def register_worker(app: chalice.app.Chalice) -> None:
-    app.on_sqs_message(queue=config_module.config.infra.queue_name)(_sqs_handler)
+    app.register_blueprint(worker_handler_blueprint)
diff --git a/runtime/chalicelib/worker/notification_sender.py b/runtime/chalicelib/worker/notification_sender.py
index c6d55ea..239c5ab 100644
--- a/runtime/chalicelib/worker/notification_sender.py
+++ b/runtime/chalicelib/worker/notification_sender.py
@@ -1,17 +1,11 @@
 import functools
 import typing
 
+import chalice.app
 import chalicelib.send_manager as send_manager
 import chalicelib.send_manager.__interface__ as send_mgr_interface
 import pydantic
 
-if typing.TYPE_CHECKING:
-    import mypy_boto3_sqs.type_defs
-
-    type RecordType = "mypy_boto3_sqs.type_defs.MessageTypeDef"
-else:
-    type RecordType = dict[str, typing.Any]
-
 
 class WorkerPayload(pydantic.BaseModel):
     sender_type: str
@@ -41,8 +35,13 @@ def send(self) -> dict[str, str]:
         return self.send_manager.send(self.send_request_payload)
 
 
-def notification_sender(record: RecordType) -> dict[str, str]:
-    return WorkerPayload.model_validate_json(record["body"]).send()
+class SQSRecordBody(pydantic.BaseModel):
+    worker: str
+    worker_payload: WorkerPayload
+
+
+def notification_sender(record: chalice.app.SQSRecord) -> dict[str, str]:
+    return SQSRecordBody.model_validate_json(record.body).worker_payload.send()
 
 
 workers = [notification_sender]
diff --git a/runtime/chalicelib/worker/test_worker.py b/runtime/chalicelib/worker/test_worker.py
index 243de21..10e2c96 100644
--- a/runtime/chalicelib/worker/test_worker.py
+++ b/runtime/chalicelib/worker/test_worker.py
@@ -1,15 +1,10 @@
-import typing
+import json
 
-if typing.TYPE_CHECKING:
-    import mypy_boto3_sqs.type_defs
+import chalice.app
 
-    type RecordType = "mypy_boto3_sqs.type_defs.MessageTypeDef"
-else:
-    type RecordType = dict[str, typing.Any]
 
-
-def test_handler(record: RecordType) -> RecordType:
-    print(record)
+def test_handler(record: chalice.app.SQSRecord) -> chalice.app.SQSRecord:
+    print(record.to_dict(), json.loads(record.body))
     return record