diff --git a/npins/sources.json b/npins/sources.json
index adcbcf1..35632fe 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -45,8 +45,8 @@
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-24.05pre591583.311a4be96d94/nixexprs.tar.xz",
-      "hash": "1gj47gf6l235avdzx49zy74h44cnln3i7lwb154c7rf1vggwkg0x"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-24.05pre591898.43d259f8d726/nixexprs.tar.xz",
+      "hash": "0yfdl8q3027bnihgv2qzqm7hvzcin97ky0vz5m7bl6ynsxzh02mw"
     },
     "rat": {
       "type": "GitRelease",