diff --git a/flask/nixpacks.toml b/flask/nixpacks.toml
index 8537de1..8e77e15 100644
--- a/flask/nixpacks.toml
+++ b/flask/nixpacks.toml
@@ -1,5 +1,5 @@
 [phases.install]
 commands = ["pip install -r requirements.txt"]
 
-[phases.start]
-command = "flask run --host=0.0.0.0 --port=5000"
+[start]
+cmd = "flask run --host=0.0.0.0 --port=5000"