diff --git a/flake.nix b/flake.nix
index e7deb2de3..e7a85d730 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,7 +3,7 @@
 
   description = "The purely functional package manager";
 
-  epoch = 201906;
+  edition = 201906;
 
   inputs = [ "nixpkgs" ];