diff --git a/Cargo.toml b/Cargo.toml
index 9a9c771..c5eeac1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "rlua-searcher"
 version = "0.1.0"
-edition = "2018"
+edition = "2021"
 authors = ["Andy Weidenbaum <atweiden@ioiojo.com>"]
 license = "MIT OR Apache-2.0"
 keywords = ["lua"]