diff --git a/notebooks/unit1/unit1.ipynb b/notebooks/unit1/unit1.ipynb
index 6228acc..cc09268 100644
--- a/notebooks/unit1/unit1.ipynb
+++ b/notebooks/unit1/unit1.ipynb
@@ -18,7 +18,7 @@
       "source": [
         "# Unit 1: Train your first Deep Reinforcement Learning Agent 🤖\n",
         "\n",
-        "![Cover](https://github.com/huggingface/deep-rl-class/blob/main/unit1/assets/img/thumbnail.png?raw=true)\n",
+        "![Cover](https://huggingface.co/datasets/huggingface-deep-rl-course/course-images/resolve/main/en/unit1/thumbnail.jpg)\n",
         "\n",
         "In this notebook, you'll train your **first Deep Reinforcement Learning agent** a Lunar Lander agent that will learn to **land correctly on the Moon 🌕**. Using [Stable-Baselines3](https://stable-baselines3.readthedocs.io/en/master/) a Deep Reinforcement Learning library, share them with the community, and experiment with different configurations\n",
         "\n",
@@ -1188,4 +1188,4 @@
   },
   "nbformat": 4,
   "nbformat_minor": 0
-}
\ No newline at end of file
+}