diff --git a/flake.lock b/flake.lock
index 219d3c3..f94c915 100644
--- a/flake.lock
+++ b/flake.lock
@@ -103,21 +103,6 @@
         "type": "indirect"
       }
     },
-    "nixpkgs-21_11": {
-      "locked": {
-        "lastModified": 1638371214,
-        "narHash": "sha256-0kE6KhgH7n0vyuX4aUoGsGIQOqjIx2fJavpCWtn73rc=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "a640d8394f34714578f3e6335fc767d0755d78f9",
-        "type": "github"
-      },
-      "original": {
-        "id": "nixpkgs",
-        "ref": "nixos-21.11",
-        "type": "indirect"
-      }
-    },
     "nixpkgs-unstable": {
       "locked": {
         "lastModified": 1639876010,
@@ -147,10 +132,12 @@
       "inputs": {
         "blobs": "blobs",
         "nixpkgs": [
-          "nixpkgs"
+          "nixpkgs-unstable"
         ],
         "nixpkgs-21_05": "nixpkgs-21_05",
-        "nixpkgs-21_11": "nixpkgs-21_11",
+        "nixpkgs-21_11": [
+          "nixpkgs"
+        ],
         "utils": "utils"
       },
       "locked": {