diff --git a/npins/sources.json b/npins/sources.json
index 1aa1bba..87f3db5 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -110,8 +110,8 @@
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-25.05pre788066.507b63021ada/nixexprs.tar.xz",
-      "hash": "1mx9ls3i1j4ydvi2pili1b68akr3i2zgdkddpsxnr2ql5l4ys9hl"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-25.05pre791229.29335f23bea5/nixexprs.tar.xz",
+      "hash": "0bkdq1v6axs2m2bg5ygw94j6k2an4fqwcd8zgq54hbn5znjp2jgq"
     },
     "rat": {
       "type": "GitRelease",