diff --git a/docs/Using-Docker.md b/docs/Using-Docker.md
index e5be3a7b98..4e15fe3cb4 100644
--- a/docs/Using-Docker.md
+++ b/docs/Using-Docker.md
@@ -61,8 +61,6 @@ the Build Settings window:
 
 - Set the _Target Platform_ to `Linux`
 - Set the _Architecture_ to `x86_64`
-- If the environment does not contain visual observations, you can select the
-  `headless` option here.
 
 Then click `Build`, pick an environment name (e.g. `3DBall`) and set the output
 directory to `unity-volume`. After building, ensure that the file
diff --git a/docs/images/docker_build_settings.png b/docs/images/docker_build_settings.png
index e0325a34b6..c942b6c2fe 100644
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diff --git a/docs/images/unity_package_json.png b/docs/images/unity_package_json.png
index 3930e22daf..9200a51bbd 100644
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diff --git a/docs/images/unity_package_manager_window.png b/docs/images/unity_package_manager_window.png
index 5f233b0e68..df0b4daf8f 100644
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