diff --git a/setup.cfg b/setup.cfg
index ed4b6f7..5b80945 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -30,7 +30,7 @@ install_requires =
     xarray>=0.17.0
     importlib-metadata;python_version<"3.9"
     importlib-resources;python_version<"3.9"
-python_requires = >=3.8
+python_requires = >=3.9
 
 [options.packages.find]
 exclude =