diff --git a/ci/default.nix b/ci/default.nix
index da6e3f877e3b..19229e85414e 100644
--- a/ci/default.nix
+++ b/ci/default.nix
@@ -147,7 +147,7 @@ rec {
   parse = pkgs.lib.recurseIntoAttrs {
     latest = pkgs.callPackage ./parse.nix { nix = pkgs.nixVersions.latest; };
     lix = pkgs.callPackage ./parse.nix { nix = pkgs.lix; };
-    nix_2_24 = pkgs.callPackage ./parse.nix { nix = pkgs.nixVersions.nix_2_24; };
+    nix_2_28 = pkgs.callPackage ./parse.nix { nix = pkgs.nixVersions.nix_2_28; };
   };
   shell = import ../shell.nix { inherit nixpkgs system; };
   tarball = import ../pkgs/top-level/make-tarball.nix {
diff --git a/lib/tests/release.nix b/lib/tests/release.nix
index 1f8c666eab01..91d0d69d1e14 100644
--- a/lib/tests/release.nix
+++ b/lib/tests/release.nix
@@ -16,7 +16,7 @@
   pkgsBB ? pkgs.pkgsBuildBuild,
   nix ? pkgs-nixVersions.stable,
   nixVersions ? [
-    pkgs-nixVersions.nix_2_24
+    pkgs-nixVersions.nix_2_28
     nix
     pkgs-nixVersions.latest
   ],