diff --git a/README.md b/README.md
index 70494b1..9a4b4cc 100644
--- a/README.md
+++ b/README.md
@@ -123,7 +123,7 @@ There are other environment variables if you want to customize various things in
 | `TEMPERATUREUNIT` | `c` | `<c\|k\|f>` | Set preferred temperature unit to `c`: Celsius, `k`: Kelvin, or `f` Fahrenheit units.
 | `WEBUIBOXEDLAYOUT` | `boxed` | `<boxed\|traditional>` | Use boxed layout (helpful when working on large screens)
 | `QUERY_LOGGING` | `true` | `<"true"\|"false">` | Enable query logging or not.
-| `WEBTHEME` | `default-light` | `<"default-dark"\|"default-darker"\|"default-light"\|"default-auto"\|"lcars">`| User interface theme to use.
+| `WEBTHEME` | `default-light` | `<"default-dark"\|"default-darker"\|"default-light"\|"default-auto"\|"high-contrast"\|"high-contrast-dark"\|"lcars">`| User interface theme to use.
 | `WEBPASSWORD_FILE`| unset | `<Docker secret path>` |Set an Admin password using [Docker secrets](https://docs.docker.com/engine/swarm/secrets/). If `WEBPASSWORD` is set, `WEBPASSWORD_FILE` is ignored. If `WEBPASSWORD` is empty, and `WEBPASSWORD_FILE` is set to a valid readable file path, then `WEBPASSWORD` will be set to the contents of `WEBPASSWORD_FILE`.
 
 ### Advanced Variables