diff --git a/pyproject.toml b/pyproject.toml
index b2b180ad..77593179 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,14 +7,11 @@ name = "qwen-tts"
 version = "0.0.4"
 description = "Qwen-TTS python package"
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.10,<3.11"
 classifiers = [
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
-  "Programming Language :: Python :: 3.11",
-  "Programming Language :: Python :: 3.12",
-  "Programming Language :: Python :: 3.13",
+
 ]
 license = { text = "Apache-2.0" }
 authors = [{ name = "Alibaba Qwen Team" }]
@@ -43,4 +40,4 @@ packages = { find = { where = ["."] , include = ["qwen_tts*"] } }
 include-package-data = true
 
 [tool.setuptools.package-data]
-qwen_tts = ["py.typed", "**/*.npz"]
\ No newline at end of file
+qwen_tts = ["py.typed", "**/*.npz"]