diff --git a/module3/exo3/exercice.ipynb b/module3/exo3/exercice.ipynb
index 8ee2354d3be662a76b499ec4b546c99dd6dfefdd..976176f99e07df98ada623d08d96a5ab7bac4bdb 100644
--- a/module3/exo3/exercice.ipynb
+++ b/module3/exo3/exercice.ipynb
@@ -332,26 +332,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 224,
+   "execution_count": 229,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "Int64Index([744, 745, 746, 747, 748, 749, 750, 751, 752, 753, 754, 755], dtype='int64')"
+       "Int64Index([748, 749, 750, 751, 752, 753, 754, 755], dtype='int64')"
       ]
      },
-     "execution_count": 224,
+     "execution_count": 229,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
     "date = datetime.date.today()\n",
-    "date\n",
-    "\n",
-    "d = data[data.Yr == date.year && data.Mn == date.year].index\n",
-    "d"
+    "da\n",
+    "data.drop(data[(data.Yr == date.year) & (data.Mn > date.month)].index)\n"
    ]
   },
   {