diff --git a/airbyte-integrations/connectors/source-sendgrid/unit_tests/unit_test.py b/airbyte-integrations/connectors/source-sendgrid/unit_tests/unit_test.py
index 8f50befe1e23f..c5f8e71ff340b 100644
--- a/airbyte-integrations/connectors/source-sendgrid/unit_tests/unit_test.py
+++ b/airbyte-integrations/connectors/source-sendgrid/unit_tests/unit_test.py
@@ -2,13 +2,17 @@
 # Copyright (c) 2022 Airbyte, Inc., all rights reserved.
 #
 
+import unittest
 from unittest.mock import MagicMock
 
+import pendulum
 import pytest
 import requests
 from airbyte_cdk.logger import AirbyteLogger
 from source_sendgrid.source import SourceSendgrid
-from source_sendgrid.streams import SendgridStream
+from source_sendgrid.streams import Messages, SendgridStream
+
+FAKE_NOW = pendulum.DateTime(2022, 1, 1, tzinfo=pendulum.timezone("utc"))
 
 
 @pytest.fixture(name="sendgrid_stream")
@@ -19,6 +23,13 @@ def sendgrid_stream_fixture(mocker) -> SendgridStream:
     return SendgridStream()  # type: ignore
 
 
+@pytest.fixture()
+def mock_pendulum_now(monkeypatch):
+    pendulum_mock = unittest.mock.MagicMock(wraps=pendulum.now)
+    pendulum_mock.return_value = FAKE_NOW
+    monkeypatch.setattr(pendulum, "now", pendulum_mock)
+
+
 def test_parse_response_gracefully_handles_nulls(mocker, sendgrid_stream: SendgridStream):
     response = requests.Response()
     mocker.patch.object(response, "json", return_value=None)
@@ -30,3 +41,14 @@ def test_source_wrong_credentials():
     source = SourceSendgrid()
     status, error = source.check_connection(logger=AirbyteLogger(), config={"apikey": "wrong.api.key123"})
     assert not status
+
+
+def test_messages_stream_request_params(mock_pendulum_now):
+    start_time = 1558359837
+    stream = Messages(start_time)
+    state = {"last_event_time": 1558359000}
+    request_params = stream.request_params(state)
+    assert (
+        request_params
+        == "query=last_event_time%20BETWEEN%20TIMESTAMP%20%222019-05-20T06%3A30%3A00Z%22%20AND%20TIMESTAMP%20%222021-12-31T16%3A00%3A00Z%22&limit=1000"
+    )