diff --git a/npins/sources.json b/npins/sources.json
index 10490ac..6cade80 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -45,8 +45,8 @@
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-24.05pre624838.af8b9db5c00f/nixexprs.tar.xz",
-      "hash": "1pymzrxmmlxd983cf8kdkdva4sn8r91qpfi1hd0yzh5xx073k1nv"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-24.05pre625253.3281bec7174f/nixexprs.tar.xz",
+      "hash": "0483fy8c1rg1whvx869jy0r158wx25g7l0pvlb00i43p7jqb25rn"
     },
     "rat": {
       "type": "GitRelease",