diff --git a/elasticmock/__init__.py b/elasticmock/__init__.py
index 699587b..607fa1b 100644
--- a/elasticmock/__init__.py
+++ b/elasticmock/__init__.py
@@ -3,7 +3,7 @@
 from functools import wraps
 
 from elasticsearch.client import _normalize_hosts
-from mock import patch
+from unittest.mock import patch
 
 from elasticmock.fake_elasticsearch import FakeElasticsearch
 
diff --git a/requirements.txt b/requirements.txt
index bb56dad..57b936e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,3 @@
 elasticsearch>=1.9.0,<8.0.0
-mock
 ipdb
 python-dateutil
\ No newline at end of file
diff --git a/setup.py b/setup.py
index b792023..3d57a84 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,6 @@
     packages=setuptools.find_packages(exclude=('tests')),
     install_requires=[
         'elasticsearch',
-        'mock',
         'python-dateutil',
     ],
     classifiers=[