diff --git a/pyproject.toml b/pyproject.toml
index 4ff75e7..e0b9ea5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,3 +3,4 @@ line-length = 120
 exclude = ".*/version.py"
 [tool.isort]
 profile = "black"
+line_length = 120