diff --git a/pyVHR/deepRPPG/hr_cnn.py b/pyVHR/deepRPPG/hr_cnn.py
index 7419f84..210c7c7 100644
--- a/pyVHR/deepRPPG/hr_cnn.py
+++ b/pyVHR/deepRPPG/hr_cnn.py
@@ -3,6 +3,8 @@
 import torch
 import torchvision.transforms as transforms
 import time
+import os
+import requests
 from collections import OrderedDict
 from torch.utils.data import DataLoader
 from .HR_CNN.utils import butter_bandpass_filter