diff --git a/notebooks/Chapter1-DataPreprocessing/Chapter 1 - Data Preprocessing.ipynb b/notebooks/Chapter1-DataPreprocessing/Chapter 1 - Data Preprocessing.ipynb
index 1c098f5..b163357 100644
--- a/notebooks/Chapter1-DataPreprocessing/Chapter 1 - Data Preprocessing.ipynb	
+++ b/notebooks/Chapter1-DataPreprocessing/Chapter 1 - Data Preprocessing.ipynb	
@@ -367,9 +367,9 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "scaleageing-kernel",
    "language": "python",
-   "name": "python3"
+   "name": "scaleageing-kernel"
   },
   "language_info": {
    "codemirror_mode": {
@@ -381,7 +381,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.3"
+   "version": "3.9.21"
   }
  },
  "nbformat": 4,
diff --git a/requirements.txt b/requirements.txt
index 55d78ac..645b6a2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,6 +5,7 @@ opencv-python
 matplotlib
 pandas
 jupyter
+ipykernel
 tqdm
 pycocotools
 onnxruntime