diff --git a/nixpacks.toml b/nixpacks.toml
index 16d2882..4da4820 100644
--- a/nixpacks.toml
+++ b/nixpacks.toml
@@ -1,3 +1,6 @@
+# Only use Node.js provider, ignore Ruby files
+providers = ["node"]
+
 [phases.setup]
 nixPkgs = ["nodejs_20", "npm"]