diff --git a/flake.nix b/flake.nix
index 3bd832db8..0ec190617 100644
--- a/flake.nix
+++ b/flake.nix
@@ -16,7 +16,7 @@
     let
       pkgs = import nac3.inputs.nixpkgs { system = "x86_64-linux"; overlays = [ (import mozilla-overlay) ]; };
 
-      artiqVersionMajor = 8;
+      artiqVersionMajor = 9;
       artiqVersionMinor = self.sourceInfo.revCount or 0;
       artiqVersionId = self.sourceInfo.shortRev or "unknown";
       artiqVersion = (builtins.toString artiqVersionMajor) + "." + (builtins.toString artiqVersionMinor) + "." + artiqVersionId + ".beta";