diff --git a/npins/sources.json b/npins/sources.json
index 23c7e07..f43abeb 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -73,8 +73,8 @@
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-24.11pre690660.4fa56ac6d86a/nixexprs.tar.xz",
-      "hash": "17lapkdy3rfsghimila0pj89l0miravrx7ik7hbgj1ipnnxay6z6"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-24.11pre691017.b69de56fac8c/nixexprs.tar.xz",
+      "hash": "0z32pj0lh5ng2a6cn0qfmka8cynnygckn5615mkaxq2aplkvgzx3"
     },
     "rat": {
       "type": "GitRelease",