diff --git a/README.rst b/README.rst
index 8798e02..4dc75de 100644
--- a/README.rst
+++ b/README.rst
@@ -14,7 +14,7 @@ Requirements
 ============
 
 - Chef 15 or higher
-- Chef Workstation 20.8.111 for testing (also includes Berkshelf for
+- Chef Workstation 21.2.303 for testing (also includes Berkshelf for
   cookbook dependency resolution)
 - gem 'fog-openstack'