diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
index 9180185..ba3e783 100644
--- a/fuzz/Cargo.toml
+++ b/fuzz/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "fuzz_parse_datetime"
 version = "0.1.0"
-edition = "2018"
+edition = "2021"
 
 [package.metadata]
 cargo-fuzz = true