diff --git a/09_dataloader.py b/09_dataloader.py
index 18c76e01..88247da9 100644
--- a/09_dataloader.py
+++ b/09_dataloader.py
@@ -66,7 +66,7 @@ def __len__(self):
 
 # convert to an iterator and look at one random sample
 dataiter = iter(train_loader)
-data = dataiter.next()
+data = next(dataiter)
 features, labels = data
 print(features, labels)
 
@@ -97,6 +97,6 @@ def __len__(self):
 
 # look at one random sample
 dataiter = iter(train_loader)
-data = dataiter.next()
+data = next(dataiter)
 inputs, targets = data
 print(inputs.shape, targets.shape)
diff --git a/13_feedforward.py b/13_feedforward.py
index b38f9eb7..29507b28 100644
--- a/13_feedforward.py
+++ b/13_feedforward.py
@@ -35,7 +35,7 @@
                                           shuffle=False)
 
 examples = iter(test_loader)
-example_data, example_targets = examples.next()
+example_data, example_targets = next(examples)
 
 for i in range(6):
     plt.subplot(2,3,i+1)
diff --git a/14_cnn.py b/14_cnn.py
index ca0b4cbf..a4abbd1a 100644
--- a/14_cnn.py
+++ b/14_cnn.py
@@ -45,7 +45,7 @@ def imshow(img):
 
 # get some random training images
 dataiter = iter(train_loader)
-images, labels = dataiter.next()
+images, labels = next(dataiter)
 
 # show images
 imshow(torchvision.utils.make_grid(images))
diff --git a/16_tensorboard.py b/16_tensorboard.py
index 0bd67dc6..21baa49b 100644
--- a/16_tensorboard.py
+++ b/16_tensorboard.py
@@ -43,7 +43,7 @@
                                           shuffle=False)
 
 examples = iter(test_loader)
-example_data, example_targets = examples.next()
+example_data, example_targets = next(examples)
 
 for i in range(6):
     plt.subplot(2,3,i+1)