diff --git a/flake.lock b/flake.lock
index c88c337..4dee6fd 100644
--- a/flake.lock
+++ b/flake.lock
@@ -581,11 +581,11 @@
     },
     "nixpkgs-master": {
       "locked": {
-        "lastModified": 1726071952,
-        "narHash": "sha256-HBTpIZFHQ2rgMdLOquGk4GbAU1lnyzukRYLj4dHWxTg=",
+        "lastModified": 1728551786,
+        "narHash": "sha256-wO3aWtTYEdaDwUdbA2bj3PTBKu3idTolOOnrPnzRo8o=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "182ffe0f2da71206de247c535ace12659a0a62b5",
+        "rev": "565db77725e0d5b0b448ecf4998239c3fddd374a",
         "type": "github"
       },
       "original": {
@@ -597,11 +597,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1725983898,
-        "narHash": "sha256-4b3A9zPpxAxLnkF9MawJNHDtOOl6ruL0r6Og1TEDGCE=",
+        "lastModified": 1728492678,
+        "narHash": "sha256-9UTxR8eukdg+XZeHgxW5hQA9fIKHsKCdOIUycTryeVw=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "1355a0cbfeac61d785b7183c0caaec1f97361b43",
+        "rev": "5633bcff0c6162b9e4b5f1264264611e950c8ec7",
         "type": "github"
       },
       "original": {
@@ -645,11 +645,11 @@
     },
     "nixpkgs_4": {
       "locked": {
-        "lastModified": 1725930920,
-        "narHash": "sha256-RVhD9hnlTT2nJzPHlAqrWqCkA7T6CYrP41IoVRkciZM=",
+        "lastModified": 1728500571,
+        "narHash": "sha256-dOymOQ3AfNI4Z337yEwHGohrVQb4yPODCW9MDUyAc4w=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "44a71ff39c182edaf25a7ace5c9454e7cba2c658",
+        "rev": "d51c28603def282a24fa034bcb007e2bcb5b5dd0",
         "type": "github"
       },
       "original": {
diff --git a/overlays/default.nix b/overlays/default.nix
index e0c8741..47097ec 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -25,6 +25,7 @@
              doInstallCheck = false;
             });
             waybar = master.waybar;
+            firefox = unstable.firefox;
             nix-inspect = unstable.nix-inspect;
             nix = unstable.lix;