diff --git a/npins/sources.json b/npins/sources.json
index 0251295b..7e1df4f9 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -81,8 +81,8 @@
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-25.05pre711046.8edf06bea5bc/nixexprs.tar.xz",
-      "hash": "1mwsn0rvfm603svrq3pca4c51zlix5gkyr4gl6pxhhq3q6xs5s8y"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-25.05pre777917.b7ba7f9f45c5/nixexprs.tar.xz",
+      "hash": "0jb6b7sv66bn06pchj2l88z0i5dlz0c2vb3z6pjjlq2p8q11zigg"
     }
   },
   "version": 3