diff --git a/Cargo.toml b/Cargo.toml
index 8b5f179..abb7e0a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,6 @@ required-features = ["commandline"]
 [lib]
 name = "grass"
 path = "src/lib.rs"
-edition = "2018"
 
 [dependencies]
 clap = { version = "2.33.0", optional = true }