diff --git a/projects/nerf/nerf/stats.py b/projects/nerf/nerf/stats.py
index e2347ebc..183ce88f 100644
--- a/projects/nerf/nerf/stats.py
+++ b/projects/nerf/nerf/stats.py
@@ -11,7 +11,7 @@ from matplotlib import colors as mcolors
 from visdom import Visdom
 
 
-class AverageMeter(object):
+class AverageMeter:
     """
     Computes and stores the average and current value.
     Tracks the exact history of the added values in every epoch.
@@ -65,7 +65,7 @@ class AverageMeter(object):
         ]
 
 
-class Stats(object):
+class Stats:
     """
     Stats logging object useful for gathering statistics of training
     a deep network in PyTorch.
diff --git a/pytorch3d/structures/meshes.py b/pytorch3d/structures/meshes.py
index 0033c2c3..38f75f5f 100644
--- a/pytorch3d/structures/meshes.py
+++ b/pytorch3d/structures/meshes.py
@@ -7,7 +7,7 @@ import torch
 from . import utils as struct_utils
 
 
-class Meshes(object):
+class Meshes:
     """
     This class provides functions for working with batches of triangulated
     meshes with varying numbers of faces and vertices, and converting between
diff --git a/pytorch3d/structures/pointclouds.py b/pytorch3d/structures/pointclouds.py
index 929f6605..52de6192 100644
--- a/pytorch3d/structures/pointclouds.py
+++ b/pytorch3d/structures/pointclouds.py
@@ -5,7 +5,7 @@ import torch
 from . import utils as struct_utils
 
 
-class Pointclouds(object):
+class Pointclouds:
     """
     This class provides functions for working with batches of 3d point clouds,
     and converting between representations.
diff --git a/pytorch3d/structures/volumes.py b/pytorch3d/structures/volumes.py
index 7e4e633c..010cb14b 100644
--- a/pytorch3d/structures/volumes.py
+++ b/pytorch3d/structures/volumes.py
@@ -8,7 +8,7 @@ from ..transforms import Scale, Transform3d
 from . import utils as struct_utils
 
 
-class Volumes(object):
+class Volumes:
     """
     This class provides functions for working with batches of volumetric grids
     of possibly varying spatial sizes.