diff --git a/.env b/.env
index 393089d..835ae86 100644
--- a/.env
+++ b/.env
@@ -6,6 +6,8 @@
 NGINX_HOST=localhost
 
 # PHP
+
+# See https://hub.docker.com/r/nanoninja/php-fpm/tags/
 PHP_VERSION=latest
 
 # MySQL