diff --git a/tests.ipynb b/tests.ipynb
index e2d55ed..8dd70f6 100644
--- a/tests.ipynb
+++ b/tests.ipynb
@@ -267,7 +267,7 @@
     "api = API(\n",
     "    base_url='https://pivision.votorantimcimentos.com/piwebapi',\n",
     "    auth_type='basic',\n",
-    "    auth_token='dmlkX3ZjbmV0XHN2Yy5waW9zaS5wcmQud2ViYXBpOlN2Y1ByRFdlQkBQaQ==',\n",
+    auth_token=__import__('os').environ.get('PI_WEB_API_BASIC_AUTH', ''),
     "    logger=MagicMock(),\n",
     "    notification_handler=AsyncMock(),\n",
     "    metrics_controller=AsyncMock(),\n",