diff --git a/npins/sources.json b/npins/sources.json
index cac45b3..7d61c49 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -248,9 +248,7 @@
         "url": "https://git.hubrecht.ovh/hubrecht/nix-pkgs"
       },
       "branch": "dgnum",
-      "revision": "304abd514dfe07bce4b368b1f384bfd598d61183",
-      "url": null,
-      "hash": null
+      "revision": "304abd514dfe07bce4b368b1f384bfd598d61183"
     },
     "nix-reuse": {
       "type": "GitRelease",
@@ -299,8 +297,8 @@
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-25.05pre709559.5083ec887760/nixexprs.tar.xz",
-      "hash": "1z912j1lmrg8zp2hpmmi69dls9zlpvqfvdkvh5xc3x6iqkqwn0cd"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-25.05pre735212.4bc9c909d9ac/nixexprs.tar.xz",
+      "hash": "14fkdpczgpbyzmh43czfny14w0vsh20klxcxj99j8iv2z4jlp52m"
     },
     "proxmox-nixos": {
       "type": "Git",
@@ -350,4 +348,4 @@
     }
   },
   "version": 3
-}
+}
\ No newline at end of file