From 36dd21a4b1605a799ffa52cb0f8c2ac6739859ef Mon Sep 17 00:00:00 2001
From: Rocco <45394586+liuzhaoze@users.noreply.github.com>
Date: Mon, 2 Sep 2024 17:17:10 +0800
Subject: [PATCH] Docs: update link to PettingZoo (#1213)

Docs: update link to PettingZoo

- [ ] I have added the correct label(s) to this Pull Request or linked
the relevant issue(s)
- [ ] I have provided a description of the changes in this Pull Request
- [ ] I have added documentation for my changes and have listed relevant
changes in CHANGELOG.md
- [ ] If applicable, I have added tests to cover my changes.
- [ ] I have reformatted the code using `poe format`
- [ ] I have checked style and types with `poe lint` and `poe
type-check`
- [ ] (Optional) I ran tests locally with `poe test`
(or a subset of them with `poe test-reduced`) ,and they pass
- [x] (Optional) I have tested that documentation builds correctly with
`poe doc-build`
---
 docs/01_tutorials/04_tictactoe.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/01_tutorials/04_tictactoe.rst b/docs/01_tutorials/04_tictactoe.rst
index 60387d30a..ff7918e1f 100644
--- a/docs/01_tutorials/04_tictactoe.rst
+++ b/docs/01_tutorials/04_tictactoe.rst
@@ -18,7 +18,7 @@ Specifically, we will design an algorithm to learn how to play `Tic Tac Toe <htt
 Tic-Tac-Toe Environment
 -----------------------
 
-The scripts are located at ``test/pettingzoo/``. We have implemented :class:`~tianshou.env.PettingZooEnv` which can wrap any `PettingZoo <https://www.pettingzoo.ml/>`_ environment. PettingZoo offers a 3x3 Tic-Tac-Toe environment, let's first explore it.
+The scripts are located at ``test/pettingzoo/``. We have implemented :class:`~tianshou.env.PettingZooEnv` which can wrap any `PettingZoo <https://pettingzoo.farama.org/>`_ environment. PettingZoo offers a 3x3 Tic-Tac-Toe environment, let's first explore it.
 ::
 
     >>> from tianshou.env import PettingZooEnv       # wrapper for PettingZoo environments