diff --git a/index.md b/index.md
index f68503b..e61c53e 100644
--- a/index.md
+++ b/index.md
@@ -62,6 +62,8 @@ Setup a [matrix-synapse](https://github.com/matrix-org/synapse) chat server. Mat
   * [matrix_user](#matrix_user)
   * [matrix_user_home](#matrix_user_home)
   * [matrix_version](#matrix_version)
+  * [matrix_virtualenv](#matrix_virtualenv)
+  * [matrix_virtualenv_command](#matrix_virtualenv_command)
   * [matrix_web_client_location](#matrix_web_client_location)
 * [Dependencies](#dependencies)
 
@@ -370,7 +372,6 @@ matrix_packages:
   - tcl-devel
   - tk-devel
   - redhat-rpm-config
-  - python36-devel
   - libffi-devel
   - openssl-devel
 ```
@@ -527,6 +528,22 @@ matrix_user_home: /home/{{ matrix_user }}
 matrix_version: 1.26.0
 ```
 
+### matrix_virtualenv
+
+#### Default value
+
+```YAML
+matrix_virtualenv: '{{ matrix_base_dir }}/env'
+```
+
+### matrix_virtualenv_command
+
+#### Default value
+
+```YAML
+matrix_virtualenv_command: /usr/bin/python3 -m venv
+```
+
 ### matrix_web_client_location
 
 #### Default value