diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f2da954..73e6c92 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: [main]
+    branches: [master]
   pull_request:
-    branches: [main]
+    branches: [master]
 
 jobs:
   check:
diff --git a/AGENTS.md b/AGENTS.md
index 77d96d3..69133ef 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -96,4 +96,4 @@ Paste protection: keystrokes <20ms apart treated as paste (inserted as text, not
 - `agent/` uses `package agent` (NOT standalone binary; imported from `cmd/bubblecode/chat.go`).
 - `opencode` CLI is NOT required at runtime — the app spawns itself (`bubblecode acp`) as the ACP agent subprocess.
 - `docs/` contains authoritative design references (`opencode-ui-design.md`, `overlay.md`, `lipgloss-best-practices.md`). Check these before making UI changes.
-- CI runs on `main` branch; release is triggered by `v*` tags.
+- CI runs on `master` branch; release is triggered by `v*` tags.