diff --git a/flake.lock b/flake.lock
index 03e3f45..2a74dda 100644
--- a/flake.lock
+++ b/flake.lock
@@ -53,16 +53,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1621088295,
-        "narHash": "sha256-hn8Rk6o5nRbWK/GE+z2OK8DIDIgGxCmVkaXpNYkald0=",
+        "lastModified": 1622922048,
+        "narHash": "sha256-nTyKxe0n7l/4HSmYaIN+63WQrvHrTJY6drSwP7bMqhU=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "17d3dab8647a31a00d8a11433a56cc12d84b5ab4",
+        "rev": "5de44c15758465f8ddf84d541ba300b48e56eda4",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-20.09",
+        "ref": "nixos-21.05",
         "repo": "nixpkgs",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index 78a3cfb..55c8d2a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "tlater.net host configuration";
 
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-20.09";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-21.05";
     nixos-hardware.url = "github:nixos/nixos-hardware/master";
     flake-utils.url = "github:numtide/flake-utils";
     tlaternet-webserver = {