diff --git a/npins/sources.json b/npins/sources.json
index 61d4e18..d6238b8 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-24.11pre642670.9693852a2070/nixexprs.tar.xz",
-      "hash": "0742ps99c1nfqv2ahz0g964p38jyflzjpaxh7h7sjj847h0chiwg"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-24.11pre643521.9c513fc6fb75/nixexprs.tar.xz",
+      "hash": "1372b0rzsf5415m9qx4dcp0j6sizglhxkydv6q8bl4fz2kcn9gwy"
     },
     "rat": {
       "type": "GitRelease",