diff --git a/README.md b/README.md
index 142c068..90092b5 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,7 @@ podman run -dt -p 5432:5432 postgres:11-alpine
 psql -U postgres -h localhost -c "CREATE ROLE risotto WITH LOGIN PASSWORD 'risotto';"
 psql -U postgres -h localhost -c "CREATE DATABASE risotto;"
 psql -U postgres -h localhost -c "GRANT ALL ON DATABASE risotto TO risotto;"
+psql -U postgres -h localhost -c "CREATE EXTENSION hstore;"
 ```