diff --git a/setup.cfg b/setup.cfg
index 444723e..f761495 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -51,8 +51,10 @@ console_scripts =
     scriv = scriv.cli:cli
 
 [options.extras_require]
-toml = tomli;python_version<3.11
-yaml = pyyaml
+toml =
+    tomli; python_version < "3.11"
+yaml =
+    pyyaml
 
 [scriv]
 ghrel_template = file: ghrel_template.md.j2