flake.lock: reverted nixpkgs version

flake.lock

@@ -78,11 +78,11 @@
         "nixpkgs-regression": "nixpkgs-regression"
       },
       "locked": {
-        "lastModified": 1735677698,
-        "narHash": "sha256-L0G5igB2xXUQwKhU5aRfRtrhDJfJ3PkOUcvXnQM2+kI=",
+        "lastModified": 1755114901,
+        "narHash": "sha256-8FzXMePkqowfQ6A2f5B7BgDrxj3HCnC+s976iB020JA=",
         "owner": "NixOS",
         "repo": "nix",
-        "rev": "4f3960ea260f95a36a204d0d57d60ead66c3b194",
+        "rev": "5d3197bb6c91a799a6672c27de2141331017dde8",
         "type": "github"
       },
       "original": {
@@ -92,16 +92,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1734359947,
-        "narHash": "sha256-1Noao/H+N8nFB4Beoy8fgwrcOQLVm9o4zKW1ODaqK9E=",
+        "lastModified": 1747179050,
+        "narHash": "sha256-qhFMmDkeJX9KJwr5H32f1r7Prs7XbQWtO0h3V0a0rFY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "48d12d5e70ee91fe8481378e540433a7303dbf6a",
+        "rev": "adaa24fbf46737f3f1b5497bf64bae750f82942e",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "release-24.11",
+        "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -140,11 +140,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1735531152,
-        "narHash": "sha256-As8I+ebItDKtboWgDXYZSIjGlKeqiLBvjxsQHUmAf1Q=",
+        "lastModified": 1751274312,
+        "narHash": "sha256-/bVBlRpECLVzjV19t5KMdMFWSwKLtb5RyXdjz3LJT+g=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3ffbbdbac0566a0977da3d2657b89cbcfe9a173b",
+        "rev": "50ab793786d9de88ee30ec4e4c24fb4236fc2674",
         "type": "github"
       },
       "original": {

package.nix

@@ -3,7 +3,7 @@
 , copyDesktopItems
 , wrapGAppsHook3
 , fetchFromGitHub
-, flutter332
+, flutter319
 }:
 
 let
@@ -20,7 +20,7 @@ let
         };
     };
 
-in flutter332.buildFlutterApplication rec {
+in flutter319.buildFlutterApplication rec {
   version = "5.0.172";
 
   src = fetchFromGitHub {