pin new version of veracrypt as older one is crashing

flake.nix

@@ -1,23 +1,24 @@
 {
   description = "NixOS configuration with flakes";
   outputs = {
-    self,
-    flake-utils,
-    flake-compat,
-    home-manager,
-    nixpkgs-nixos-unstable,
-    nixpkgs-master,
-    nixpkgs-stable,
-    darwin,
-    nixos-hardware,
-    nur,
-    sops,
-    nil,
-    helix,
     alejandra,
-    nixpkgs-rust-analyzer,
-    endless-sky,
+    darwin,
     disko,
+    endless-sky,
+    flake-compat,
+    flake-utils,
+    helix,
+    home-manager,
+    nil,
+    nixos-hardware,
+    nixpkgs-master,
+    nixpkgs-nixos-unstable,
+    nixpkgs-rust-analyzer,
+    nixpkgs-stable,
+    nur,
+    self,
+    sops,
+    veracrypt,
   } @ inputs: let
     mkServer = pkgs: system: hostname:
       pkgs.lib.nixosSystem {
@@ -103,6 +104,10 @@
             inherit system;
             config = {allowUnfree = true;};
           };
+          nixpkgs-veracrypt = import veracrypt {
+            inherit system;
+            config = {allowUnfree = true;};
+          };
         };
       };
     mkShell = packageSet: system: let
@@ -245,6 +250,13 @@
       ref = "2100c4926200b1ebbee032ad22113597195932f2";
     };
 
+    veracrypt = {
+      type = "github";
+      owner = "NixOS";
+      repo = "nixpkgs";
+      ref = "2bbbf414fed6ab89cd971f5645da692dad6d9420";
+    };
+
     nixos-hardware = {
       type = "github";
       owner = "NixOS";

nixos/common.nix

@@ -4,6 +4,7 @@
   lib,
   inputs,
   nixpkgs-nixos-unstable-and-unfree,
+  nixpkgs-veracrypt,
   ...
 }: let
   stateVersion = "23.05";
@@ -36,7 +37,7 @@ in {
     tmux
     usbutils
     wget
-    nixpkgs-nixos-unstable-and-unfree.veracrypt
+    nixpkgs-veracrypt.veracrypt
   ];
 
   i18n.defaultLocale = "en_GB.UTF-8";