diff --git a/flake.nix b/flake.nix
index 52fd2f82a37e..e37621c6fc1c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,8 +1,6 @@
 # Experimental flake interface to Nixpkgs.
 # See https://github.com/NixOS/rfcs/pull/49 for details.
 {
-  edition = 201909;
-
   description = "A collection of packages for the Nix package manager";
 
   outputs = { self }: