diff --git a/pyproject.toml b/pyproject.toml
index c7230ff..6ed4723 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ description = "Simple atomic swap system"
 keywords = ["crypto", "cryptocurrency", "particl", "bitcoin", "monero", "wownero"]
 readme = "README.md"
 license = {file = "LICENSE"}
-requires-python = ">=3.9"
+requires-python = ">=3.11"
 classifiers = [
     "Programming Language :: Python :: 3",
     "License :: OSI Approved :: MIT License",