diff --git a/packaging/hydra.nix b/packaging/hydra.nix
index e4562cd21..17ba72032 100644
--- a/packaging/hydra.nix
+++ b/packaging/hydra.nix
@@ -19,11 +19,7 @@ let
   testNixVersions = pkgs: daemon:
     pkgs.nixComponents.nix-functional-tests.override {
       pname = "nix-daemon-compat-tests";
-      version =
-        lib.optionalString
-          (lib.versionAtLeast daemon.version "2.4pre20211005" &&
-           lib.versionAtLeast pkgs.nix.version "2.4pre20211005")
-          "${pkgs.nix.version}-with-daemon-${daemon.version}";
+      version = "${pkgs.nix.version}-with-daemon-${daemon.version}";
 
       test-daemon = daemon;
     };