diff --git a/pyproject.toml b/pyproject.toml
index af51a0b..50b607c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ authors = [
 ]
 description = "A model for speech generation with an AR + diffusion architecture."
 readme = "README.md"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 classifiers = [
     "Programming Language :: Python :: 3",
     # "License :: OSI Approved :: MIT License",