diff --git a/pyproject.toml b/pyproject.toml
index 0c00aed..67088fa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,7 +47,7 @@ dev-flake8 = [
   "pydocstyle == 6.3.0",
   "frequenz-client-base",
 ]
-dev-formatting = ["black == 26.3.1", "isort == 7.0.0"]
+dev-formatting = ["black == 26.3.1", "isort == 8.0.1"]
 dev-mkdocs = [
   "black == 26.3.1",
   "Markdown==3.10.2",