diff --git a/nix/sources.json b/nix/sources.json
index 6b775c7..a1c11a7 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -5,10 +5,10 @@
         "homepage": "",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b4cc9cd38f05f1a764e21bfb1b14e89be76068b0",
-        "sha256": "07izaybzigzd6rczzk5ccq84zcr6iw45l642ycfyvbxridd0hdvs",
+        "rev": "d2fc6856824cb87742177eefc8dd534bdb6c3439",
+        "sha256": "18nmpsna8lmqcmag2x0gfncd96rrvxgsgn4r7wyagdjymbhzmx2a",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/b4cc9cd38f05f1a764e21bfb1b14e89be76068b0.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/d2fc6856824cb87742177eefc8dd534bdb6c3439.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }