diff --git a/docs/deploy-from-ansible.md b/docs/deploy-from-ansible.md
index abd335b..7976711 100644
--- a/docs/deploy-from-ansible.md
+++ b/docs/deploy-from-ansible.md
@@ -132,6 +132,7 @@ Additional tags:
             "Effect": "Allow",
             "Action": [
                 "cloudformation:CreateStack",
+                "cloudformation:UpdateStack",
                 "cloudformation:DescribeStacks",
                 "cloudformation:DescribeStackEvents",
                 "cloudformation:ListStackResources"