diff --git a/BHPD/01-DNN-Regression.ipynb b/BHPD/01-DNN-Regression.ipynb
index 25ef77024279a2380ce17bffc402d6358b77c146..cf85e4762360ffc0232f7c385e9f789be9252b54 100644
--- a/BHPD/01-DNN-Regression.ipynb
+++ b/BHPD/01-DNN-Regression.ipynb
@@ -330,6 +330,7 @@
    "source": [
     "# ---- Suffle and Split => train, test\n",
     "#\n",
+    "data       = data.sample(frac=1., axis=0)\n",
     "data_train = data.sample(frac=0.7, axis=0)\n",
     "data_test  = data.drop(data_train.index)\n",
     "\n",
@@ -1701,7 +1702,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.5"
+   "version": "3.8.10"
   }
  },
  "nbformat": 4,
diff --git a/BHPD/02-DNN-Regression-Premium.ipynb b/BHPD/02-DNN-Regression-Premium.ipynb
index 53f75c076bab0aa19181d1b5afd0498a61f0f18c..3d8fde915c6ddcaaa1e2abaa2e27b62ee0992645 100644
--- a/BHPD/02-DNN-Regression-Premium.ipynb
+++ b/BHPD/02-DNN-Regression-Premium.ipynb
@@ -130,6 +130,7 @@
    "source": [
     "# ---- Split => train, test\n",
     "#\n",
+    "data       = data.sample(frac=1., axis=0)\n",
     "data_train = data.sample(frac=0.7, axis=0)\n",
     "data_test  = data.drop(data_train.index)\n",
     "\n",
@@ -431,7 +432,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.9"
+   "version": "3.8.10"
   }
  },
  "nbformat": 4,