diff --git a/npins/sources.json b/npins/sources.json
index f41f978..77c2306 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -107,8 +107,8 @@
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-25.11pre890836.e1ebeec86b77/nixexprs.tar.xz",
-      "hash": "0gd99x25zygh82wniqz7jbqwnxjdcpvxxaks8fw38cqxxrgfi426"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-25.11pre891648.f6b44b240152/nixexprs.tar.xz",
+      "hash": "0rljaahlkcrcjqd9sj5iyv9zng4yqns1215kanm7hi4w9gri0b74"
     },
     "rat": {
       "type": "GitRelease",