diff --git a/1_data_cleaning.ipynb b/1_data_cleaning.ipynb
index ed1c466..18e187c 100644
--- a/1_data_cleaning.ipynb
+++ b/1_data_cleaning.ipynb
@@ -30,7 +30,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "2018-08-29 17:09:28 CEST\n",
+      "2018-08-29 17:18:17 CEST\n",
       "\n",
       "CPython 3.6.5\n",
       "IPython 6.5.0\n",
@@ -2285,7 +2285,7 @@
     "update_column_descriptions(df.columns)\n",
     "# Without any more missing data, cast all numeric\n",
     "# columns as floats or integers respectively.\n",
-    "for column in CONTINUOUS_VARIABLES:\n",
+    "for column in CONTINUOUS_VARIABLES + [\"SalePrice\"]:\n",
     "    df[column] = df[column].astype(np.float64)\n",
     "for column in DISCRETE_VARIABLES:\n",
     "    df[column] = df[column].astype(np.int64)"
@@ -2595,7 +2595,7 @@
        "      <td>1960</td>\n",
        "      <td>1960</td>\n",
        "      <td>2010</td>\n",
-       "      <td>215000</td>\n",
+       "      <td>215000.0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>2</th>\n",
@@ -2677,7 +2677,7 @@
        "      <td>1961</td>\n",
        "      <td>1961</td>\n",
        "      <td>2010</td>\n",
-       "      <td>105000</td>\n",
+       "      <td>105000.0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>3</th>\n",
@@ -2759,7 +2759,7 @@
        "      <td>1958</td>\n",
        "      <td>1958</td>\n",
        "      <td>2010</td>\n",
-       "      <td>172000</td>\n",
+       "      <td>172000.0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>4</th>\n",
@@ -2841,7 +2841,7 @@
        "      <td>1968</td>\n",
        "      <td>1968</td>\n",
        "      <td>2010</td>\n",
-       "      <td>244000</td>\n",
+       "      <td>244000.0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>5</th>\n",
@@ -2923,7 +2923,7 @@
        "      <td>1997</td>\n",
        "      <td>1998</td>\n",
        "      <td>2010</td>\n",
-       "      <td>189900</td>\n",
+       "      <td>189900.0</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
        "</table>\n",
@@ -3060,11 +3060,11 @@
        "\n",
        "                 Year Built  Year Remod/Add  Yr Sold  SalePrice  \n",
        "Order PID                                                        \n",
-       "1     526301100        1960            1960     2010     215000  \n",
-       "2     526350040        1961            1961     2010     105000  \n",
-       "3     526351010        1958            1958     2010     172000  \n",
-       "4     526353030        1968            1968     2010     244000  \n",
-       "5     527105010        1997            1998     2010     189900  "
+       "1     526301100        1960            1960     2010   215000.0  \n",
+       "2     526350040        1961            1961     2010   105000.0  \n",
+       "3     526351010        1958            1958     2010   172000.0  \n",
+       "4     526353030        1968            1968     2010   244000.0  \n",
+       "5     527105010        1997            1998     2010   189900.0  "
       ]
      },
      "execution_count": 40,