diff --git a/scripts/lib/config.fish b/scripts/lib/config.fish
index f7ec3d18..abd3f6da 100644
--- a/scripts/lib/config.fish
+++ b/scripts/lib/config.fish
@@ -1,4 +1,4 @@
 set projectName port-valhalla
-set nixPkgsVersion nixos-24.11
+set nixPkgsVersion 566e53c2ad750c84f6d31f9ccb9d00f823165550
 set valhallaCache ~/".cache/$projectName"
 set nixPkgsCache "$valhallaCache/nixpkgs/$nixPkgsVersion"