diff --git a/Cargo.toml b/Cargo.toml
index 359c10941..174999add 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Tamas Blummer <tamas.blummer@gmail.com>", "Zcash Foundation <zebra@z
 license = "Apache-2.0"
 readme = "README.md"
 build = "build.rs"
-edition = "2018"
+edition = "2021"
 description = "ffi bindings to zcashd's zcash_script library"
 documentation = "https://docs.rs/zcash_script"
 repository = "https://github.com/ZcashFoundation/zcash_script"