diff --git a/pyproject.toml b/pyproject.toml
index 41ca383..8a87d58 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ authors = ["Mike Lynch <m.lynch@sydney.edu.au>"]
 readme = "README.md"
 
 [tool.poetry.dependencies]
-python = "^3.9"
+python = "^3.7"
 feedparser = "^6.0.10"
 
 [tool.poetry.scripts]