diff --git a/nix/sources.json b/nix/sources.json
index f4b5fef..33feaf7 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -5,10 +5,10 @@
         "homepage": "",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "a0edeb02ae5b92eda6efbee4e26d8c33c15063fd",
-        "sha256": "1bqfd2q8r2kkwdidp6c86n3rvs63m7jrkzb71cdkll95sxhgbv3q",
+        "rev": "660ac43ff9ab1f12e28bfb31d4719795777fe152",
+        "sha256": "090r91bhbp7i5bi1ihwwknbc5ahk2i5gkf4f5g2piy3bxiyf2r2c",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/a0edeb02ae5b92eda6efbee4e26d8c33c15063fd.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/660ac43ff9ab1f12e28bfb31d4719795777fe152.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }