diff --git a/Cargo.toml b/Cargo.toml
index 60e957351..d172f3242 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 name = "esp-idf-hal"
 version = "0.42.5"
 authors = ["sapir <yasapir@gmail.com>", "Ivan Markov <ivan.markov@gmail.com>"]
-edition = "2018"
+edition = "2021"
 resolver = "2"
 categories = ["embedded", "hardware-support"]
 keywords = ["hal", "idf", "esp-idf", "esp32"]