diff --git a/nix/sources.json b/nix/sources.json
index eb4fb596..88bab6bb 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -16,8 +16,8 @@
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-26.05pre903996.59b6c96beacc/nixexprs.tar.xz",
-      "hash": "0b0yr9d1xyfwgpaj68bimsbjjbj7yis4whjvkrfdycfnasdf0gf0"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-26.05pre918255.346dd96ad74d/nixexprs.tar.xz",
+      "hash": "18hsj84ndffq8dz2nh7mv2xib113lxc83spkg3csgzw0agpmkris"
     }
   },
   "version": 5