diff --git a/docs/usage/installation.md b/docs/usage/installation.md
index 451840ff..4e70ef80 100644
--- a/docs/usage/installation.md
+++ b/docs/usage/installation.md
@@ -109,10 +109,6 @@ You can allow/disallow [embedding](https://developer.mozilla.org/en-US/docs/Web/
 docker run -p 80:80 -e EMBEDDING=true swaggerapi/swagger-ui
 ```
 
-```sh
-docker run -p 80:80 -e PORT_IPV6=8080 swaggerapi/swagger-ui
-```
-
 For more information on controlling Swagger UI through the Docker image, see the Docker section of the [Configuration documentation](configuration.md#docker).
 
 ### unpkg