diff --git a/pyproject.toml b/pyproject.toml
index b7d8191..3a1871f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,10 +10,11 @@ authors = [
 license = "MIT"
 
 classifiers = [
-  "Programming Language :: Python :: 2.7",
   "Programming Language :: Python :: 3",
 ]
 
+requires-python = ">=3.10"
+
 dependencies = [
     "jieba",
 ]
@@ -29,7 +30,4 @@ Homepage = "https://github.com/xospc/python-smart-pinyin"
 requires = ["setuptools>=64", "setuptools-scm>=8"]
 build-backend = "setuptools.build_meta"
 
-[tool.requires-python]
-version = ">=3.10"
-
 [tool.setuptools_scm]