diff --git a/pyproject.toml b/pyproject.toml
index f0ddf20..cbf6e00 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ authors = [
 ]
 readme = "README.md"
 license = { file="COPYING" }
-requires-python = ">= 3.8"
+requires-python = ">= 3.9"
 dependencies = [
   "numpy",
   "seaborn",