diff --git a/pyproject.toml b/pyproject.toml
index 609050e..adca2d5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,6 +44,9 @@ fix = true
 show-fixes = true
 output-format = "full"
 
+[tool.ruff.format]
+quote-style = "single"
+
 [tool.ruff.lint]
 extend-select = [
     "W", # pycodestyle Warning