diff --git a/npins/sources.json b/npins/sources.json
index aa18f82..b81c0b8 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -73,8 +73,8 @@
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-25.05pre721840.71a6392e367b/nixexprs.tar.xz",
-      "hash": "172arjrskqfp9cv4pjs8b9554zy71ff3i594099iw2xvfxzjyly2"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-25.05pre723402.4989a246d7a3/nixexprs.tar.xz",
+      "hash": "0hjng6rhkjiql1dqbanjm6jl6npik29q2lmba032j897fhyzin91"
     },
     "rat": {
       "type": "GitRelease",