diff --git a/pyproject.toml b/pyproject.toml
index 1e2a34f..9c1e962 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,6 @@ skip = ".tox"
 legacy_tox_ini = """
 [tox]
 envlist =
-    {py36,py37,py38}
     lint
     sort
     format