diff --git a/nixpacks.toml b/nixpacks.toml
index 91bf55a..943fb66 100644
--- a/nixpacks.toml
+++ b/nixpacks.toml
@@ -1,2 +1,3 @@
 [phases.setup]
-nixPkgs = ["bun", "nodejs"]
\ No newline at end of file
+nixPkgs = ["bun", "nodejs"]
+nixpkgsArchive = "nixpkgs-unstable"
\ No newline at end of file