diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 24690697..ad09e26a 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -10,6 +10,7 @@
 - [Dillan Mills](https://github.com/DillanCMills)
 - [Felicián Németh](https://github.com/nemethf)
 - [Felix Yan](https://github.com/felixonmars)
+- [Jelle van der Waa](https://github.com/jelly)
 - [Jérome Perrin](https://github.com/perrinjerome)
 - [Karthik Nadig](https://github.com/karthiknadig)
 - [Laurence Warne](https://github.com/LaurenceWarne)
diff --git a/examples/json-vscode-extension/server/tests/unit/test_features.py b/examples/json-vscode-extension/server/tests/unit/test_features.py
index dd01fac4..053d5f6a 100644
--- a/examples/json-vscode-extension/server/tests/unit/test_features.py
+++ b/examples/json-vscode-extension/server/tests/unit/test_features.py
@@ -21,7 +21,7 @@
 import time
 
 import pytest
-from mock import Mock
+from unittest.mock import Mock
 from lsprotocol.types import (DidCloseTextDocumentParams,
                               DidOpenTextDocumentParams, TextDocumentIdentifier,
                               WorkspaceConfigurationResponse,
diff --git a/setup.cfg b/setup.cfg
index dfafa94a..f1c282b6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -37,7 +37,6 @@ install_requires =
     typeguard>=3,<4
 include_package_data = True
 tests_require =
-    mock==4.0.3
     pytest==7.1.2
     pytest-asyncio==0.18.3
 
@@ -57,7 +56,6 @@ docs =
     sphinx==5.0.1
     sphinx_rtd_theme==1.0.0
 test =
-    mock==4.0.3
     pytest==7.1.2
     pytest-asyncio==0.18.3