diff --git a/justfile b/justfile
index 26b5c14..ea04600 100644
--- a/justfile
+++ b/justfile
@@ -29,8 +29,13 @@ default:
 
 # Format
 @format: bootstrap
-    ruff format .
-    ruff check . --fix
+    ruff format
+    ruff check --fix
+
+# Lint
+@lint: bootstrap
+    ruff format --check
+    ruff check
 
 # Test
 @test: bootstrap
diff --git a/tox.ini b/tox.ini
index 39eea14..acf00b6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -11,15 +11,7 @@ envlist =
     py312-{4.2,5.0,5.1,main},
     py313-{4.2,5.0,5.1,main},
     docs,
-    ruff
-
-[gh-actions]
-python =
-    3.9: py39
-    3.10: py310
-    3.11: py310
-    3.12: py310, ruff, docs
-    3.13: py310
+    lint
 
 [testenv]
 basepython =
@@ -41,10 +33,13 @@ deps =
     5.1: Django==5.1.*
     main: https://github.com/django/django/archive/main.tar.gz
 
-[testenv:ruff]
+[testenv:lint]
 basepython = python3.12
-deps = ruff
-commands = ruff check .
+allowlist_externals = just
+setenv =
+    PYTHONWARNINGS=default
+commands =
+    just lint
 
 [testenv:docs]
 basepython = python3.12