diff --git a/flake.lock b/flake.lock
index 2e5ee77..275f1a6 100644
--- a/flake.lock
+++ b/flake.lock
@@ -41,11 +41,11 @@
     },
     "emacs-overlay": {
       "locked": {
-        "lastModified": 1651750171,
-        "narHash": "sha256-IltysR3/0qLKrhbnUwdLbwFPv26Q9gvxuzqx1h/G/jQ=",
+        "lastModified": 1652072170,
+        "narHash": "sha256-7aWTXT+tM6yNYwq6HYzNmnFvkosygMMFy0QPiLgBt6M=",
         "owner": "nix-community",
         "repo": "emacs-overlay",
-        "rev": "4e0481c777deab3f01cb5a6bdddffd49321ea1a3",
+        "rev": "ff6f93f4d156d7e9b48bb9cc986d119775e7df1f",
         "type": "github"
       },
       "original": {
@@ -93,7 +93,10 @@
     },
     "naersk": {
       "inputs": {
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": [
+          "comma",
+          "nixpkgs"
+        ]
       },
       "locked": {
         "lastModified": 1650101877,
@@ -128,15 +131,18 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1651310835,
-        "narHash": "sha256-MLk/zsLlbPhwFucxL64Fr+oIrvQC2/76Ap2F7ekbPNI=",
-        "path": "/nix/store/fj0r6l3gglr0k0b4dxn3hm8drcwclm36-source",
-        "rev": "fd3e33d696b81e76b30160dfad2efb7ac1f19879",
-        "type": "path"
+        "lastModified": 1652020977,
+        "narHash": "sha256-9hDlNbrxzD/pLlXmoQ6gzxbYiSAKrj7uHYUWNByLFlI=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "3c5ae9be1f18c790ea890ef8decbd0946c0b4c04",
+        "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
+        "owner": "NixOS",
+        "ref": "nixos-21.11",
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "nixpkgs-21_05": {
@@ -171,11 +177,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1651558728,
-        "narHash": "sha256-8HzyRnWlgZluUrVFNOfZAOlA1fghpOSezXvxhalGMUo=",
+        "lastModified": 1651726670,
+        "narHash": "sha256-dSGdzB49SEvdOJvrQWfQYkAefewXraHIV08Vz6iDXWQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "cbe587c735b734405f56803e267820ee1559e6c1",
+        "rev": "c777cdf5c564015d5f63b09cc93bef4178b19b01",
         "type": "github"
       },
       "original": {
@@ -186,22 +192,6 @@
       }
     },
     "nixpkgs_2": {
-      "locked": {
-        "lastModified": 1651662302,
-        "narHash": "sha256-utlTjLa1s4ezdQIUvnBtmA9TBYFrPlXpAJnCXEiZFZI=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "dff5496b12817e3d019983827c4b7ba7beb96580",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-21.11",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_3": {
       "locked": {
         "lastModified": 1626852498,
         "narHash": "sha256-lOXUJvi0FJUXHTVSiC5qsMRtEUgqM4mGZpMESLuGhmo=",
@@ -222,7 +212,7 @@
         "emacs-overlay": "emacs-overlay",
         "home-manager": "home-manager",
         "nixos-hardware": "nixos-hardware",
-        "nixpkgs": "nixpkgs_2",
+        "nixpkgs": "nixpkgs",
         "nixpkgs-unstable": "nixpkgs-unstable",
         "simple-nixos-mailserver": "simple-nixos-mailserver",
         "sops-nix": "sops-nix"
@@ -231,7 +221,7 @@
     "simple-nixos-mailserver": {
       "inputs": {
         "blobs": "blobs",
-        "nixpkgs": "nixpkgs_3",
+        "nixpkgs": "nixpkgs_2",
         "nixpkgs-21_05": "nixpkgs-21_05",
         "nixpkgs-21_11": "nixpkgs-21_11",
         "utils": "utils_2"