diff --git a/app.yaml b/app.yaml
index 9d1b757..77457ec 100644
--- a/app.yaml
+++ b/app.yaml
@@ -1 +1,2 @@
 runtime: python38
+entrypoint: gunicorn -b :$PORT main:app
diff --git a/pyproject.toml b/pyproject.toml
index 61fe3a3..2bddd17 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,6 +10,7 @@ python = "^3.7.1"
 csv-metadata-quality = {git = "https://github.com/ilri/csv-metadata-quality.git", rev = "46098861ed71cf52cd3f32067ea427146dc1a2bf"}
 Flask = "^1.1.2"
 ansi2html = "^1.6.0"
+gunicorn = "^20.0.4"
 
 [tool.poetry.dev-dependencies]
 black = "^20.8b1"