diff --git a/.rustfmt.toml b/.rustfmt.toml
new file mode 100644
index 000000000..a0347832e
--- /dev/null
+++ b/.rustfmt.toml
@@ -0,0 +1,3 @@
+edition = "2021"
+imports_granularity = "Crate"
+group_imports = "StdExternalCrate"