diff --git a/flake.lock b/flake.lock
index 60b86d5..a7390aa 100644
--- a/flake.lock
+++ b/flake.lock
@@ -33,16 +33,18 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1637533542,
-        "narHash": "sha256-9jR9AOz4OZf4IxMdIgveOur8n5WbZJBAXtXOe434l78=",
-        "owner": "NixOS",
+        "lastModified": 1638159152,
+        "narHash": "sha256-M6kwz4ko54zC3ev5LMhmqxWDNFhpN80zN0pckmWmGLI=",
+        "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "b2181bc967053310657128d687e44ec683e7604b",
+        "rev": "7dcd2f54b82826b05cfd91730a1d77b5d80f008c",
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "7dcd2f54b82826b05cfd91730a1d77b5d80f008c",
+        "type": "github"
       }
     },
     "root": {
diff --git a/flake.nix b/flake.nix
index a927662..dc1c69d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,7 @@
 {
   description = "haskell-template's description";
   inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/7dcd2f54b82826b05cfd91730a1d77b5d80f008c";
     flake-utils.url = "github:numtide/flake-utils";
     flake-compat = {
       url = "github:edolstra/flake-compat";
@@ -8,7 +9,7 @@
     };
   };
   outputs = inputs@{ self, nixpkgs, flake-utils, ... }:
-    flake-utils.lib.eachSystem [ "x86_64-linux" "x86_64-darwin" ] (system:
+    flake-utils.lib.eachSystem [ "x86_64-linux" "x86_64-darwin" "aarch64-darwin" ] (system:
       let
         overlays = [ ];
         pkgs =