diff --git a/notebooks/demo.ipynb b/notebooks/demo.ipynb
index 1da64d7..adae5e2 100644
--- a/notebooks/demo.ipynb
+++ b/notebooks/demo.ipynb
@@ -28,7 +28,9 @@
     "import matplotlib.pyplot as plt\n",
     "import numpy as np\n",
     "from glidertest import fetchers\n",
-    "from glidertest import tools"
+    "from glidertest import tools\n",
+    "import warnings\n",
+    "warnings.simplefilter(\"ignore\", category=Warning)"
    ]
   },
   {