diff --git a/notebooks/tutorial_stats.ipynb b/notebooks/tutorial_stats.ipynb
index bdf3c82..4c1b757 100644
--- a/notebooks/tutorial_stats.ipynb
+++ b/notebooks/tutorial_stats.ipynb
@@ -29,7 +29,7 @@
    "source": [
     "import json\n",
     "\n",
-    "with open('tutorials.json', 'r') as f:\n",
+    "with open('tutorials.json') as f:\n",
     "  tutorials = json.load(f)['tutorials']\n",
     "\n",
     "print(tutorials)"
@@ -345,6 +345,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "# ruff: noqa: E501\n",
     "def build_new_tutorial(tutorial):\n",
     "    new = {\n",
     "        \"m_def\": \"nomad_aitoolkit.schema.AIToolkitNotebook\",\n",
@@ -353,8 +354,8 @@
     "        'date': tutorial['updated'],\n",
     "\n",
     "        'category': map_categories[tutorial['labels']['category'][0]],\n",
-    "        'methods': [ {'name': v } for v in tutorial['labels']['ai_methods'] ],\n",
-    "        'applications': [ {'name': v } for v in tutorial['labels']['application_system'] ],\n",
+    "        'methods': [{'name': v } for v in tutorial['labels']['ai_methods']],\n",
+    "        'applications': [{'name': v } for v in tutorial['labels']['application_system']],\n",
     "        'platform': 'Python'\n",
     "    }\n",
     "\n",