diff --git a/flake.lock b/flake.lock
index add4ae15..8fb8d9d0 100644
--- a/flake.lock
+++ b/flake.lock
@@ -362,22 +362,6 @@
       }
     },
     "nixos": {
-      "locked": {
-        "lastModified": 1685987698,
-        "narHash": "sha256-iyJcc/ZJI8KROtkmKwVbs0sRGJawcYD/8owb/Z2/R3s=",
-        "owner": "SuperSandro2000",
-        "repo": "nixpkgs",
-        "rev": "e13e8c733b1582cb033f57bc4daed2494c502387",
-        "type": "github"
-      },
-      "original": {
-        "owner": "SuperSandro2000",
-        "ref": "nixos-22.11",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixos-23-05": {
       "locked": {
         "lastModified": 1685987719,
         "narHash": "sha256-ZPX6//WcW6g4t7hSS4G5A1OVCGibftTFQiFgV8Htj5I=",
@@ -393,6 +377,22 @@
         "type": "github"
       }
     },
+    "nixos-21-11": {
+      "locked": {
+        "lastModified": 1685987698,
+        "narHash": "sha256-iyJcc/ZJI8KROtkmKwVbs0sRGJawcYD/8owb/Z2/R3s=",
+        "owner": "SuperSandro2000",
+        "repo": "nixpkgs",
+        "rev": "e13e8c733b1582cb033f57bc4daed2494c502387",
+        "type": "github"
+      },
+      "original": {
+        "owner": "SuperSandro2000",
+        "ref": "nixos-22.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixos-hardware": {
       "locked": {
         "lastModified": 1684899633,
@@ -500,7 +500,7 @@
         "naersk": "naersk",
         "nix-cache-cut": "nix-cache-cut",
         "nixos": "nixos",
-        "nixos-23-05": "nixos-23-05",
+        "nixos-21-11": "nixos-21-11",
         "nixos-hardware": "nixos-hardware",
         "nixos-modules": "nixos-modules",
         "oparl-scraper": "oparl-scraper",