diff --git a/README.rst b/README.rst
index 5dadae3..9ec7100 100644
--- a/README.rst
+++ b/README.rst
@@ -30,7 +30,7 @@ Prerequisites
 -------------
 
 - Chef 15 or higher
-- `Chef Workstation`_ 20.8.111 or later
+- `Chef Workstation`_ 20.9.158 or later
 - `Vagrant`_ 2.0 or later with `VirtualBox>`_ or some other provider
 
 .. _Chef Workstation: https://downloads.chef.io/chef-workstation/
diff --git a/playbooks/pre-delivery.yaml b/playbooks/pre-delivery.yaml
index 7247327..b8e68f0 100644
--- a/playbooks/pre-delivery.yaml
+++ b/playbooks/pre-delivery.yaml
@@ -6,7 +6,7 @@
 
 - hosts: all
   vars:
-    release: 20.8.111
+    release: 20.9.158
     chef_workstation: chef-workstation_{{ release }}-1_amd64.deb
   tasks:
   - name: Fetch chef-workstation package
diff --git a/test/tempest/default/default_test.rb b/test/tempest/default/default_test.rb
index 4bebee5..02b01d6 100644
--- a/test/tempest/default/default_test.rb
+++ b/test/tempest/default/default_test.rb
@@ -1,5 +1,3 @@
-# # encoding: utf-8
-
 # Inspec test for openstack-chef
 
 # The Inspec reference, with examples and extensive documentation, can be