diff --git a/README.rst b/README.rst
index 41ce1c86d94..ef899cc2445 100644
--- a/README.rst
+++ b/README.rst
@@ -144,7 +144,7 @@ Optional Dependencies
 PTB can be installed with optional dependencies:
 
 * ``pip install python-telegram-bot[passport]`` installs the `cryptography <https://cryptography.io>`_ library. Use this, if you want to use Telegram Passport related functionality.
-* ``pip install python-telegram-bot[ujson]`` installs the `ujson <https://pypi.org/project/ujson/>`_ library. It will then be used for JSON de- & encoding, which can bring speed up compared to the standard `json <https://docs.python.org/3/library/json.html>`_ library.
+* ``pip install python-telegram-bot[json]`` installs the `ujson <https://pypi.org/project/ujson/>`_ library. It will then be used for JSON de- & encoding, which can bring speed up compared to the standard `json <https://docs.python.org/3/library/json.html>`_ library.
 * ``pip install python-telegram-bot[socks]`` installs the `PySocks <https://pypi.org/project/PySocks/>`_ library. Use this, if you want to work behind a Socks5 server.
 
 ===============
diff --git a/README_RAW.rst b/README_RAW.rst
index 7a8c8fd5e6d..20595b0c17c 100644
--- a/README_RAW.rst
+++ b/README_RAW.rst
@@ -144,7 +144,7 @@ Optional Dependencies
 PTB can be installed with optional dependencies:
 
 * ``pip install python-telegram-bot-raw[passport]`` installs the `cryptography <https://cryptography.io>`_ library. Use this, if you want to use Telegram Passport related functionality.
-* ``pip install python-telegram-bot-raw[ujson]`` installs the `ujson <https://pypi.org/project/ujson/>`_ library. It will then be used for JSON de- & encoding, which can bring speed up compared to the standard `json <https://docs.python.org/3/library/json.html>`_ library.
+* ``pip install python-telegram-bot-raw[json]`` installs the `ujson <https://pypi.org/project/ujson/>`_ library. It will then be used for JSON de- & encoding, which can bring speed up compared to the standard `json <https://docs.python.org/3/library/json.html>`_ library.
 
 ===============
 Getting started