diff --git a/Cargo.toml b/Cargo.toml
index 5fe7438..c1f81fd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,6 @@
 name = "rustlings"
 version = "0.1.0"
 authors = ["olivia <olivia@fastmail.com>"]
-edition = "2018"
 
 [dependencies]
 clap = "2.32.0"