diff --git a/taxoniumtools/setup.cfg b/taxoniumtools/setup.cfg
index dcaf365e..a39ee922 100644
--- a/taxoniumtools/setup.cfg
+++ b/taxoniumtools/setup.cfg
@@ -18,7 +18,7 @@ classifiers =
 package_dir =
     = src
 packages = find:
-python_requires = >=3.7
+python_requires = >=3.8
 install_requires =
     treeswift
     alive-progress