diff --git a/prod/Intro_to_regression.ipynb b/prod/Intro_to_regression.ipynb
index 5ef4d28..d8ca815 100644
--- a/prod/Intro_to_regression.ipynb
+++ b/prod/Intro_to_regression.ipynb
@@ -55,10 +55,10 @@
    "source": [
     "import welly\n",
     "\n",
-    "w = welly.Well.from_las(\"https://geocomp.s3.amazonaws.com/data/R-39.las\")\n",
+    "w = welly.Well.from_las(\"https://raw.githubusercontent.com/scienxlab/datasets/refs/heads/main/cnsopb/ALMA_3_D399_SON_DEN_NEUT_2393-3388M_LAS.las\")\n",
     "xy, z = w.data_as_matrix(keys=['GR', 'NPOR', 'RHOB', 'DT4P', 'DT4S'], return_basis=True, step=1.0)\n",
     "data = np.hstack([z.reshape(-1, 1), xy])\n",
-    "# np.savetxt('/local/S3/geocomp/data/MD-GR-NPOR-RHOB-DT4P-DT4S.txt', data, delimiter=',')"
+    "np.savetxt('./MD-GR-NPOR-RHOB-DT4P-DT4S.txt', data, delimiter=',')"
    ]
   },
   {
@@ -229,7 +229,7 @@
    "source": [
     "import pandas as pd\n",
     "\n",
-    "df = pd.read_csv('https://geocomp.s3.amazonaws.com/data/MD-GR-NPOR-RHOB-DT4P-DT4S.txt',\n",
+    "df = pd.read_csv('./MD-GR-NPOR-RHOB-DT4P-DT4S.txt',\n",
     "                 names='MD-GR-NPOR-RHOB-DT4P-DT4S'.split('-'),\n",
     "                )\n",
     "\n",