diff --git a/module3/exo1/analyse-syndrome-grippal.ipynb b/module3/exo1/analyse-syndrome-grippal.ipynb
index 2eeedcb8a614926a4e6ccc763613605655b7aa1a..eaffc4f103289de12ec906e4cf673808d8726917 100644
--- a/module3/exo1/analyse-syndrome-grippal.ipynb
+++ b/module3/exo1/analyse-syndrome-grippal.ipynb
@@ -32,8 +32,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "filename = 'incidence-PAY-3.csv'\n",
-    "data_url = \"http://www.sentiweb.fr/datasets/incidence-PAY-3.csv\""
+    "filename = 'incidence-PAY-3.csv'"
    ]
   },
   {
@@ -60,8 +59,10 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
-   "metadata": {},
+   "execution_count": 16,
+   "metadata": {
+    "scrolled": false
+   },
    "outputs": [
     {
      "data": {
@@ -1025,13 +1026,18 @@
        "[1897 rows x 10 columns]"
       ]
      },
-     "execution_count": 3,
+     "execution_count": 16,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "raw_data = pd.read_csv(filename, skiprows=1)\n",
+    "# Si le fichier de données n'est pas présent, il sera téléchargé depuis le serveur.\n",
+    "try:\n",
+    "    raw_data = pd.read_csv(filename, skiprows=1)\n",
+    "except FileNotFoundError:\n",
+    "    !wget \"http://www.sentiweb.fr/datasets/incidence-PAY-3.csv\"\n",
+    "    raw_data = pd.read_csv(filename, skiprows=1)\n",
     "raw_data"
    ]
   },
@@ -2208,7 +2214,7 @@
     {
      "data": {
       "text/plain": [
-       "<matplotlib.axes._subplots.AxesSubplot at 0x7ff623d59b00>"
+       "<matplotlib.axes._subplots.AxesSubplot at 0x7fc07d183390>"
       ]
      },
      "execution_count": 9,
@@ -2247,7 +2253,7 @@
     {
      "data": {
       "text/plain": [
-       "<matplotlib.axes._subplots.AxesSubplot at 0x7ff621bb39b0>"
+       "<matplotlib.axes._subplots.AxesSubplot at 0x7fc07c7044a8>"
       ]
      },
      "execution_count": 10,
@@ -2351,7 +2357,7 @@
     {
      "data": {
       "text/plain": [
-       "<matplotlib.axes._subplots.AxesSubplot at 0x7ff621b4d390>"
+       "<matplotlib.axes._subplots.AxesSubplot at 0x7fc07c69f438>"
       ]
      },
      "execution_count": 13,
@@ -2453,7 +2459,7 @@
     {
      "data": {
       "text/plain": [
-       "<matplotlib.axes._subplots.AxesSubplot at 0x7ff621b2a0f0>"
+       "<matplotlib.axes._subplots.AxesSubplot at 0x7fc07c67db70>"
       ]
      },
      "execution_count": 15,