diff --git a/examples/3-creating-new-env-model.ipynb b/examples/3-creating-new-env-model.ipynb
index f94fafb2..fedbb33b 100644
--- a/examples/3-creating-new-env-model.ipynb
+++ b/examples/3-creating-new-env-model.ipynb
@@ -7,7 +7,7 @@
    "source": [
     "# New Environment: Creating and Modeling\n",
     "<!-- \n",
-    "<a href=\"https://colab.research.google.com/github/ai4co/rl4co/blob/main/notebooks/1-quickstart.ipynb\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"></a>\n",
+    "<a href=\"https://colab.research.google.com/github/ai4co/rl4co/blob/main/examples/3-creating-new-env-model.ipynb\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"></a>\n",
     "\n",
     "[**Documentation**](https://rl4co.readthedocs.io/) |  [**Getting Started**](https://github.com/ai4co/rl4co/tree/main#getting-started) | [**Usage**](https://github.com/ai4co/rl4co/tree/main#usage) | [**Contributing**](#contributing) | [**Paper**](https://arxiv.org/abs/2306.17100) | [**Citation**](#cite-us) -->"
    ]
@@ -18,7 +18,7 @@
    "source": [
     "In this notebook, we will show how to extend RL4CO to solve new problems from zero to hero! 🚀\n",
     "\n",
-    "<a href=\"https://colab.research.google.com/github/ai4co/rl4co/blob/main/notebooks/examples/3-creating-new-env-model.ipynb\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"></a>\n",
+    "<a href=\"https://colab.research.google.com/github/ai4co/rl4co/blob/main/examples/3-creating-new-env-model.ipynb\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"></a>\n",
     "\n",
     "### Contents\n",
     "\n",