diff --git a/nix/sources.json b/nix/sources.json
index 0df3a6f..6413998 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -62,10 +62,10 @@
         "homepage": "https://github.com/NixOS/nixpkgs",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "fd3e33d696b81e76b30160dfad2efb7ac1f19879",
-        "sha256": "1liw3glyv1cx0bxgxnq2yjp0ismg0np2ycg72rqghv75qb73zf9h",
+        "rev": "ad667404474314806d8071eec4c8ec0db95c17e4",
+        "sha256": "0594hq60zgv6170vkq6z4i4qp4mly5269mwc6jj9p94m2rqfdfbw",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/fd3e33d696b81e76b30160dfad2efb7ac1f19879.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/ad667404474314806d8071eec4c8ec0db95c17e4.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgsUnstable": {