diff --git a/imagededup/__init__.py b/imagededup/__init__.py
index 73e3bb4..80eb7f9 100644
--- a/imagededup/__init__.py
+++ b/imagededup/__init__.py
@@ -1 +1 @@
-__version__ = '0.3.2'
+__version__ = '0.3.3'
diff --git a/imagededup/utils/image_utils.py b/imagededup/utils/image_utils.py
index c922c62..a0f129f 100644
--- a/imagededup/utils/image_utils.py
+++ b/imagededup/utils/image_utils.py
@@ -4,10 +4,16 @@
 import numpy as np
 from PIL import Image
 
+# enables Pillow HEIF support using https://github.com/bigcat88/pillow_heif
+# pi-heif is the same codebase, but more light, HEIF decoder-only version
+
+from pi_heif import register_heif_opener
+register_heif_opener()
+
 from imagededup.utils.logger import return_logger
 
 
-IMG_FORMATS = ['JPEG', 'PNG', 'BMP', 'MPO', 'PPM', 'TIFF', 'GIF', 'WEBP']
+IMG_FORMATS = ['JPEG', 'PNG', 'BMP', 'MPO', 'PPM', 'TIFF', 'GIF', 'WEBP', 'HEIF']
 logger = return_logger(__name__)
 
 
diff --git a/requirements.txt b/requirements.txt
index 55f6a68..6d1a1d1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,5 +5,6 @@ tqdm
 scikit-learn
 PyWavelets
 matplotlib
+pi-heif
 # Development dependencies
-cython>=0.29
\ No newline at end of file
+cython>=0.29
diff --git a/setup.py b/setup.py
index 119ab47..d08aba5 100644
--- a/setup.py
+++ b/setup.py
@@ -1,3 +1,4 @@
+import os
 import sys
 from setuptools import setup, find_packages, Extension
 
@@ -18,7 +19,7 @@
 
 Read the documentation at: https://idealo.github.io/imagededup/
 
-imagededup is compatible with Python 3.8+ and runs on Linux, MacOS X and Windows. 
+imagededup is compatible with Python 3.8+ and runs on Linux, MacOS X and Windows.
 It is distributed under the Apache 2.0 license.
 '''
 
@@ -43,6 +44,10 @@
 COMPILE_ARGS_OSX = ['-stdlib=libc++']
 LINK_ARGS_OSX = ['-lc++', '-nodefaultlibs']
 
+# workaround for Cython generated cpp code being compiled with CC,
+# not CXX. it causes compilation error with clang/llvm from nixpkgs
+os.environ["CC"] = "clang++"
+
 ext_modules = []
 if use_cython and on_mac:
     ext_modules += cythonize([
@@ -89,7 +94,7 @@
 
 setup(
     name='imagededup',
-    version='0.3.2',
+    version='0.3.3',
     author='Tanuj Jain, Christopher Lennan, Zubin John, Dat Tran',
     author_email='tanuj.jain.10@gmail.com, christopherlennan@gmail.com, zrjohn@yahoo.com, datitran@gmail.com',
     description='Package for image deduplication',
@@ -102,7 +107,8 @@
         'tqdm',
         'scikit-learn',
         'PyWavelets',
-        'matplotlib'
+        'matplotlib',
+        'pi-heif'
     ],
     extras_require={
         'tests': ['pytest', 'pytest-cov', 'pytest-mock', 'codecov'],