diff --git a/pyproject.toml b/pyproject.toml
index e9469d1..d9c9b93 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ name = "speccpulib"
 version = "0.1.0"
 description = "Scripts that helps debugging SPEC CPU benchmark suite."
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.12"
 dependencies = []
 
 [tool.setuptools]