diff --git a/npins/sources.json b/npins/sources.json
index 8b4cc3f..161aeb1 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -304,8 +304,8 @@
     "nixos-unstable": {
       "type": "Channel",
       "name": "nixos-unstable",
-      "url": "https://releases.nixos.org/nixos/unstable/nixos-25.05beta737779.9abb87b552b7/nixexprs.tar.xz",
-      "hash": "0vjcyxzyiryspx8k1h7xsw0j9gcb4hs5wihhng64l9sqdf0b3kwp"
+      "url": "https://releases.nixos.org/nixos/unstable/nixos-25.05beta747653.799ba5bffed0/nixexprs.tar.xz",
+      "hash": "0bb9dlmrsi1fbi94m34a1z3jvip9qs2g1pcjr1kvm3i9zinaycbr"
     },
     "proxmox-nixos": {
       "type": "Git",