diff --git a/npins/sources.json b/npins/sources.json
index 0d4bf33..497530f 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -107,8 +107,8 @@
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-26.05pre1003764.3d8f0f3f72a6/nixexprs.tar.xz",
-      "hash": "sha256-Zc5W2GRfLZtIDsEn0A5kzoN0+yNWq/3MzzoXGu0ytMU="
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1004746.f9d8b6595035/nixexprs.tar.xz",
+      "hash": "sha256-luOcHMj74mEbDfB9dbcvMlXUF/6oefoKI2xxyZAvyy0="
     },
     "rat": {
       "type": "GitRelease",