diff --git a/ruff.toml b/ruff.toml
index e61ca8b0..70612985 100644
--- a/ruff.toml
+++ b/ruff.toml
@@ -1,4 +1,8 @@
 [lint]
+extend-select = [
+	"C901",
+	"W",
+]
 ignore = [
 	# https://docs.astral.sh/ruff/formatter/#conflicting-lint-rules
 	"W191",
diff --git a/setup.cfg b/setup.cfg
index 3ea2ca08..71b66b39 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -41,8 +41,6 @@ testing =
 docs =
 	# upstream
 	sphinx >= 3.5
-	# workaround for sphinx/sphinx-doc#11662
-	sphinx < 7.2.5
 	jaraco.packaging >= 9.3
 	rst.linker >= 1.9
 	furo
diff --git a/tox.ini b/tox.ini
index 1da8497a..3604f01f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,6 +14,7 @@ extras =
 [testenv:diffcov]
 description = run tests and check that diff from main is covered
 deps =
+	{[testenv]deps}
 	diff-cover
 commands =
 	pytest {posargs} --cov-report xml