diff --git a/requirements-dev.txt b/requirements-dev.txt
index 56fbcae1a..3cdd175db 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,7 @@
 autopep8
 Babel>=2.6.0
 flake8
-isort<4.3.10
+isort>=4.3.10,<5
 pycodestyle
 pylint
 transifex-client