diff --git a/tox.ini b/tox.ini
index 9b9a790..07bfaea 100644
--- a/tox.ini
+++ b/tox.ini
@@ -31,8 +31,8 @@ deps =
 [testenv:lint]
 basepython = python3.6
 deps =
-    flake8==3.9.0
-    black==20.8b1
+    flake8==3.9.2
+    black==21.5b1
     isort==5.8.0
 commands =
     flake8 django_migration_linter/