diff --git a/requirements.txt b/requirements.txt
index 1bbda42..96102aa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,11 @@
 # Django
 django===3.2.7
 django-extensions===3.1.3
-# Servidor para Django
+# PostgreSQL driver
+psycopg2===2.9.1
+# Servidor para Django sin Websockets
+gunicorn===20.1.0
+# Servidor para Django con Websockets
 uvicorn===0.13.4
 websockets===9.1
 # Channels