diff --git a/npins/sources.json b/npins/sources.json
index 9ded7b3..5d7edb2 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -48,8 +48,8 @@
     "nixpkgs": {
       "type": "Channel",
       "name": "nixos-unstable-small",
-      "url": "https://releases.nixos.org/nixos/unstable-small/nixos-25.05pre777042.1d3a750cb7d8/nixexprs.tar.xz",
-      "hash": "0g2q7g6chpmaa0b6py8aqgwx71gvxlpirijlk6b0y5z15r0hdabk"
+      "url": "https://releases.nixos.org/nixos/unstable-small/nixos-25.11pre818584.a269ce395284/nixexprs.tar.xz",
+      "hash": "0gjazqi3z82wkzlkchg7bvf60iippxsa7d204iz0bjgrv1vm8ki8"
     }
   },
   "version": 5