diff --git a/hosts/plato/configuration.nix b/hosts/plato/configuration.nix
index 81389fa..3848c0d 100644
--- a/hosts/plato/configuration.nix
+++ b/hosts/plato/configuration.nix
@@ -3,8 +3,10 @@
 let
   dotfiles = builtins.fetchTarball
     "https://github.com/walkah/dotfiles/archive/main.tar.gz";
-in {
-  imports = [ # Include the results of the hardware scan.
+in
+{
+  imports = [
+    # Include the results of the hardware scan.
     ./hardware-configuration.nix
     <home-manager/nixos>
 
@@ -51,7 +53,7 @@ in {
   home-manager.users.walkah = import "${dotfiles}/home.nix";
 
   system.autoUpgrade.enable = false;
-  environment.systemPackages = with pkgs; [ docker-compose weechat ];
+  environment.systemPackages = with pkgs; [ docker-compose pinentry weechat ];
 
   fileSystems."/mnt/downloads" = {
     device = "192.168.6.100:/volume1/Downloads";
@@ -84,6 +86,7 @@ in {
   programs.gnupg.agent = {
     enable = true;
     enableSSHSupport = true;
+    pinentryFlavor = "curses";
   };
 
   # Enable the OpenSSH daemon.
diff --git a/nix/sources.json b/nix/sources.json
index d3062bd..f78c80f 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -29,10 +29,10 @@
         "homepage": "",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "45a3f9d7725c7e21b252c223676cc56fb2ed5d6d",
-        "sha256": "1m1d0n6hk60agsqvqcfn1g3wkzc9ivn8bavzyssi1ap7d1qxlm63",
+        "rev": "2d555e5f6529d8485ea7ccdbd3633cf1681eaa2e",
+        "sha256": "0vfhda0idfdygsrjkyijz5m3ln7569nrph4mcfwlfcvj5b0ns3sl",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/45a3f9d7725c7e21b252c223676cc56fb2ed5d6d.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/2d555e5f6529d8485ea7ccdbd3633cf1681eaa2e.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "sops-nix": {