diff --git a/final/flake.nix b/final/flake.nix
index 813744d..9bcd5a1 100644
--- a/final/flake.nix
+++ b/final/flake.nix
@@ -1,5 +1,5 @@
 {
-  inputs.artiq.url = git+https://github.com/m-labs/artiq.git;
+  inputs.artiq.url = git+https://github.com/m-labs/artiq.git?ref=release-7;
   outputs = { self, artiq }: {
     nixosConfigurations.artiq = artiq.inputs.nixpkgs.lib.nixosSystem {
       system = "x86_64-linux";