diff --git a/pyproject.toml b/pyproject.toml
index 9c8e984..26d5841 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,8 +22,8 @@ include = [
 ]
 
 [tool.poetry.dependencies]
-python = "^3.9"
-Django = "^3.2.0"
+python = "^3.6"
+Django = ">=2.2, <4.1"
 YubiOTP = "^1.0.0"
 
 [tool.poetry.dev-dependencies]