diff --git a/README.md b/README.md
index 4a58582..dbcdaf4 100644
--- a/README.md
+++ b/README.md
@@ -95,6 +95,19 @@ Run this command after every deploy/upgrade:
 
 `abra app command --local <app-name> customize <assets_path>`
 
+## Custom CSS
+
+uncomment:
+
+```
+COMPOSE_FILE="$COMPOSE_FILE:compose.css-volume.yml"
+```
+Run:
+```
+abra app cp <app_name> my_custom.css app:/web/dist/assets/custom.css
+abra app restart <app_name> app
+```
+
 ## Email templates
 
 Add custom [email templates](https://goauthentik.io/docs/flow/stages/email/#custom-templates):