diff --git a/metabox/README.md b/metabox/README.md
index e5e6840d0..53e338e86 100644
--- a/metabox/README.md
+++ b/metabox/README.md
@@ -34,8 +34,8 @@ Create a Python virtual environment and install Metabox in it:
 
 ```shell
 $ cd metabox/
-$ python3 -m venv metabox
-$ source metabox/bin/activate
+$ python3 -m venv venv
+$ source venv/bin/activate
 (metabox) $ pip install -e .
 ```
 
diff --git a/metabox/setup.py b/metabox/setup.py
index c0ea68561..4bb048ce0 100755
--- a/metabox/setup.py
+++ b/metabox/setup.py
@@ -21,17 +21,23 @@
 from setuptools import find_packages, setup
 
 setup(
-    name='metabox',
-    version='0.3',
+    name="metabox",
+    version="0.3",
     packages=find_packages(),
-    install_requires=['loguru', 'pylxd', 'pyyaml', 'importlib-resources'],
+    install_requires=[
+        "importlib-resources",
+        "loguru",
+        "pylxd",
+        "pyyaml",
+        "urllib3 >= 1.26.0, < 2.0.0",
+    ],
     entry_points={
-        'console_scripts': [
-            'metabox = metabox.main:main',
+        "console_scripts": [
+            "metabox = metabox.main:main",
         ]
     },
     include_package_data=True,
     package_data={
-        '': ['metabox/metabox-provider/*'],
-    }
+        "": ["metabox/metabox-provider/*"],
+    },
 )