diff --git a/ci/default.nix b/ci/default.nix
index 6aa80f977901..06fa75bbc38f 100644
--- a/ci/default.nix
+++ b/ci/default.nix
@@ -70,7 +70,7 @@ rec {
   };
   parse = pkgs.lib.recurseIntoAttrs {
     nix_latest = pkgs.callPackage ./parse.nix { nix = pkgs.nixVersions.latest; };
-    nix_2_28 = pkgs.callPackage ./parse.nix { nix = pkgs.nixVersions.nix_2_28; };
+    stable = pkgs.callPackage ./parse.nix { nix = pkgs.nixVersions.stable; };
     lix = pkgs.callPackage ./parse.nix { nix = pkgs.lix; };
     lix_latest = pkgs.callPackage ./parse.nix { nix = pkgs.lixPackageSets.latest.lix; };
   };
diff --git a/ci/pinned.json b/ci/pinned.json
index fc034a85bccf..0b3d817d1b06 100644
--- a/ci/pinned.json
+++ b/ci/pinned.json
@@ -9,9 +9,9 @@
       },
       "branch": "nixpkgs-unstable",
       "submodules": false,
-      "revision": "8c91a71d13451abc40eb9dae8910f972f979852f",
-      "url": "https://github.com/NixOS/nixpkgs/archive/8c91a71d13451abc40eb9dae8910f972f979852f.tar.gz",
-      "hash": "sha256-fnzKKPvS+oieI/pTzotA5tkoM47EB1NpaBcgk4R97hE="
+      "revision": "6edbf1a6a03e75886a6609c088801a0856449e88",
+      "url": "https://github.com/NixOS/nixpkgs/archive/6edbf1a6a03e75886a6609c088801a0856449e88.tar.gz",
+      "hash": "sha256-0lkauQbtrljJqwtzTCILPAiHAJyMvn6XDo264moDv30="
     }
   },
   "version": 8
diff --git a/ci/update-pinned.sh b/ci/update-pinned.sh
index 69ba7df9131d..51c99b0da98d 100755
--- a/ci/update-pinned.sh
+++ b/ci/update-pinned.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env nix-shell
-#!nix-shell -i bash -p npins -I nixpkgs=../
+#!nix-shell -i bash -E 'with import ../. {}; mkShell { packages = [ npins ]; }'
 
 set -euo pipefail