diff --git a/dev-requirements.txt b/dev-requirements.txt
index bedb5a43..da4dfc96 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,6 +1,6 @@
 tox < 3.29  # until tox-pyenv is updated for tox 4.x
 tox-pyenv < 1.2
-isort > 5, < 6.2
+isort > 5, < 7.1
 build < 1.3.1
 autoflake < 2.4
 auto-walrus