diff --git a/npins/sources.json b/npins/sources.json
index 2ed4dd2..a11e3f0 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-25.11pre814704.6afe187897be/nixexprs.tar.xz",
-      "hash": "0hxmwqdhjqqga9w23hjc5bj0w1jf9s148m5kfpdp8sydbnldfdq7"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-25.11pre814815.41da1e3ea8e2/nixexprs.tar.xz",
+      "hash": "1hpd50fg4s7mg7a7rqs7j1a659qnf27f9j5s1fgi0dj7zhac002n"
     },
     "rat": {
       "type": "GitRelease",