diff --git a/README.md b/README.md
index 3410e08fc..6881fec25 100644
--- a/README.md
+++ b/README.md
@@ -59,7 +59,7 @@ ## Get Started
 
 ### Installation
 
-> Ensure that Python 3.9+ is installed on your system. You can check this by using: `python --version`.  
+> Ensure that Python 3.9 or later, but less than 3.12, is installed on your system. You can check this by using: `python --version`.  
 > You can use conda like this: `conda create -n metagpt python=3.9 && conda activate metagpt`
 
 ```bash
diff --git a/setup.py b/setup.py
index 8ba4c8a72..9fecfa766 100644
--- a/setup.py
+++ b/setup.py
@@ -109,7 +109,7 @@ setup(
     license="MIT",
     keywords="metagpt multi-agent multi-role programming gpt llm metaprogramming",
     packages=find_packages(exclude=["contrib", "docs", "examples", "tests*"]),
-    python_requires=">=3.9",
+    python_requires=">=3.9, <3.12",
     install_requires=requirements,
     extras_require=extras_require,
     cmdclass={