diff --git a/nix/sources.json b/nix/sources.json
index a5dacd7..264a137 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -5,10 +5,10 @@
         "homepage": null,
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "70717a337f7ae4e486ba71a500367cad697e5f09",
-        "sha256": "1sbmqn7yc5iilqnvy9nvhsa9bx6spfq1kndvvis9031723iyymd1",
+        "rev": "8946799e079e466c0420c18312861090e08a8fe7",
+        "sha256": "10dwzdari9zjmqciccyyymmsj6zr5s76s9yqgs6ipshyfkkx7hrc",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/70717a337f7ae4e486ba71a500367cad697e5f09.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/8946799e079e466c0420c18312861090e08a8fe7.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "stack2nix": {