diff --git a/openspec/changes/user-accounts/tasks.md b/openspec/changes/user-accounts/tasks.md
index 5277c49..76aff1e 100644
--- a/openspec/changes/user-accounts/tasks.md
+++ b/openspec/changes/user-accounts/tasks.md
@@ -87,7 +87,7 @@
 
 ## 15. Documentation & Deployment
 
-- [ ] 15.1 `[haiku]` Update `DEPLOYMENT.md` with new env vars, migration steps, Google OAuth setup instructions
+- [x] 15.1 `[haiku]` Update `DEPLOYMENT.md` with new env vars, migration steps, Google OAuth setup instructions
 - [ ] 15.2 `[haiku]` Update `README.md` with user accounts feature description
 - [ ] 15.3 `[haiku]` Update `CLAUDE_DESCRIPTION.md` with new routing, auth system, and schema changes
 - [ ] 15.4 `[haiku]` Update `.env.example` with all new environment variables and comments