diff --git a/Cargo.toml b/Cargo.toml
index b5ef1b7..d3d896c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,6 +2,7 @@
 authors = ["Matteo De Carlo <matteo.dek@gmail.com>"]
 name = "rustline"
 version = "0.1.2"
+edition = "2021"
 
 [dependencies]
 git2 = "0.13.6"