diff --git a/Cargo.toml b/Cargo.toml
index 6aefe48..83df6b9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ readme = "README.md"
 keywords = ["age", "cli", "encryption", "yubikey"]
 categories = ["command-line-utilities", "cryptography"]
 license = "MIT OR Apache-2.0"
-edition = "2018"
+edition = "2021"
 
 [package.metadata.deb]
 extended-description = """\