diff --git a/npins/sources.json b/npins/sources.json
index e87829d..c593f45 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -48,8 +48,8 @@
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-24.11pre635739.31f409910124/nixexprs.tar.xz",
-      "hash": "03k8b8yawqcbz75n0fv8bfa7capm3shnd72z06plw5cp8wn9ymrm"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-24.11pre636256.d226935fd750/nixexprs.tar.xz",
+      "hash": "19nsa24zj9x23akcnpp2zgb1n5fv903cg0q5kygnky2s25fl4icy"
     },
     "rat": {
       "type": "GitRelease",