diff --git a/nixpacks.toml b/nixpacks.toml
index 737c6e4..971b326 100644
--- a/nixpacks.toml
+++ b/nixpacks.toml
@@ -1,4 +1,4 @@
-NIXPACKS_NODE_VERSION[phases.setup]
+[phases.setup]
 nixPkgs = [
   "nodejs_20",
   "npm-10_x",