diff --git a/poetry.lock b/poetry.lock
index 609b41a..2a815ad 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -8,7 +8,7 @@ python-versions = "*"
 
 [metadata]
 lock-version = "1.1"
-python-versions = "^3.10"
+python-versions = "^3.9"
 content-hash = "7884484664662ef3a2683e8032b957139e6bb0f977eb2755f300188d91168ca9"
 
 [metadata.files]
diff --git a/pyproject.toml b/pyproject.toml
index 548c66e..038b5da 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ description = ""
 authors = ["Stefan Bethke <stb@lassitu.de>"]
 
 [tool.poetry.dependencies]
-python = "^3.10"
+python = "^3.9"
 bottle = "^0.12.21"
 
 [tool.poetry.dev-dependencies]