diff --git a/flake.lock b/flake.lock
index 2088a18..61ea42b 100644
--- a/flake.lock
+++ b/flake.lock
@@ -146,27 +146,27 @@
     },
     "nixpkgs-release": {
       "locked": {
-        "lastModified": 1637615379,
-        "narHash": "sha256-wL5+nm7z+42IHyhc52P3aAj1Kp2fQ6C8IyPBihj7Bjg=",
+        "lastModified": 1638475421,
+        "narHash": "sha256-LBAB304gdNdLdD7QgLL8Qgvfk/i8657B0Nzhija6xhs=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "09650059d7f5ae59a7f0fb2dd3bfc6d2042a74de",
+        "rev": "94724efb7b3acc1cac10b4eb7c00f587175b07a2",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "release-21.05",
+        "ref": "release-21.11",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1637593665,
-        "narHash": "sha256-R7jKS7A+0tZS8qD5pBr1UFcMiTdsw5bfoxgXbYsoWhM=",
+        "lastModified": 1638397275,
+        "narHash": "sha256-2Jos1CJFTMO9IbulbM4PTKn24nISIDQCAG/AqYQ8rmg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "98747f27ecfee70c8c97b195cbb94df80a074dda",
+        "rev": "391f93a83c3a486475d60eb4a569bb6afbf306ad",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 5efedf0..5141c91 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "bytes.zone infrastructure";
 
   inputs = {
-    nixpkgs-release.url = "github:NixOS/nixpkgs/release-21.05";
+    nixpkgs-release.url = "github:NixOS/nixpkgs/release-21.11";
     nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
 
     bad-datalog.url =