diff --git a/pyproject.toml b/pyproject.toml
index 89a0f5b9..20dd936d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -95,6 +95,7 @@ version = { attr = "data_morph.__version__" }
 line-length = 88
 format.indent-style = "space"
 format.quote-style = "single"
+format.skip-magic-trailing-comma = false
 format.docstring-code-format = true
 lint.select = [
   "ANN",  # flake8-annotations
@@ -135,6 +136,7 @@ lint.extend-per-file-ignores."tests/*" = [ "ANN" ] # don't require annotations f
 lint.isort.known-first-party = [
   "data_morph",
 ]
+lint.isort.split-on-trailing-comma = false
 
 [tool.codespell]
 ignore-words-list = "recuse"