diff --git a/rustfmt.toml b/rustfmt.toml
index c1a42eb..481ef24 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -1,3 +1,3 @@
 max_width = 120
-edition = "2018"
+edition = "2021"
 use_try_shorthand = true