diff --git a/README.md b/README.md
index c93f7bc..cd3fdd5 100644
--- a/README.md
+++ b/README.md
@@ -40,11 +40,9 @@ curl -L https://www.opscode.com/chef/install.sh | bash
 git clone https://github.com/stackforge/openstack-chef-repo
 cd openstack-chef-repo
 /opt/chef/embedded/bin/gem install berkshelf
-/opt/chef/embedded/bin/berks install --path=./cookbooks
+/opt/chef/embedded/bin/berks vendor ./cookbooks
 ```
 
-TODO(zhiwei): Need to change `berks install` to `berks vendor` after upgrading Berkshelf to 3.x.
-
 ## Prepare Chef environment
 
 Here is a minimal [environment file](environments/zero-demo.json).