diff --git a/tox.ini b/tox.ini
index bc2066b..6e67575 100644
--- a/tox.ini
+++ b/tox.ini
@@ -21,7 +21,7 @@ setenv=
 
 [testenv:flake8]
 skip_install = true
-deps = flake8
+deps = flake8<6.0
        flake8-author
        flake8-blind-except
        py{35,36,37,38,39,310}: flake8-bugbear