diff --git a/nix/sources.json b/nix/sources.json
index 3ffe691..fc206c1 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -41,10 +41,10 @@
         "homepage": "",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "bba2f2bdc4d711625a8b7c1725177fe0ab72bbd0",
-        "sha256": "0cz6qr5vdmwc8qna7r7k4a9wil1rlb0lm79256cvyslxq1kwkilr",
+        "rev": "12d9950bf47e0ac20d4d04e189448ee075242117",
+        "sha256": "09wy33zbzxj33296ddrrb79630kxpj1c3kiv38zs4wrw24206c2v",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/bba2f2bdc4d711625a8b7c1725177fe0ab72bbd0.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/12d9950bf47e0ac20d4d04e189448ee075242117.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs-unstable": {
@@ -53,10 +53,10 @@
         "homepage": "",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "916ee862e87ac5ee2439f2fb7856386b4dc906ae",
-        "sha256": "165byy4hgg44w4ks1l289yx98bifqwyk6amil9rq7z7978d5lsj9",
+        "rev": "1f77a4c8c74bbe896053994836790aa9bf6dc5ba",
+        "sha256": "1j62nmzz3w33dplzf1xz1pg1pfkxii7lwdqmsxmc71cs9cm3s7n1",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/916ee862e87ac5ee2439f2fb7856386b4dc906ae.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/1f77a4c8c74bbe896053994836790aa9bf6dc5ba.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "pre-commit-hooks.nix": {