diff --git a/npins/sources.json b/npins/sources.json
index cac45b3..033a928 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",
@@ -293,8 +291,8 @@
     "nixos-unstable": {
       "type": "Channel",
       "name": "nixos-unstable",
-      "url": "https://releases.nixos.org/nixos/unstable/nixos-25.05beta710087.23e89b7da85c/nixexprs.tar.xz",
-      "hash": "0b695yx17sarr7d3ypb9z6njd0qhiga1682wjxidl053lvx6g33b"
+      "url": "https://releases.nixos.org/nixos/unstable/nixos-25.05beta735357.bffc22eb1217/nixexprs.tar.xz",
+      "hash": "03xs2grfqcr63cjpwa6ahisq57akq95qk1c2hmc1zb8k6aqjmgid"
     },
     "nixpkgs": {
       "type": "Channel",
@@ -350,4 +348,4 @@
     }
   },
   "version": 3
-}
+}
\ No newline at end of file