diff --git a/docs/security.md b/docs/security.md
index 426c0fb..a1fcfe4 100644
--- a/docs/security.md
+++ b/docs/security.md
@@ -72,7 +72,9 @@ when the operation ends.
 
 GSwitch reads the installed CLI version from the same executable it uses for
 App Server. It updates the CLI only after a user selects **Update CLI**, with
-the GSwitch operation lock held and no external Codex runtime active. The CLI
+the GSwitch operation lock held and no external Codex runtime active. When
+GSwitch's own work, such as a quota refresh, holds that lock, the update waits
+for it to finish instead of failing. The CLI
 itself chooses its supported installation method; GSwitch does not download or
 replace CLI files or change account credentials. A completed update is followed
 by a fresh version read. Missing or unsupported update commands use official
diff --git a/src-tauri/src/accounts.rs b/src-tauri/src/accounts.rs
index 031c6d5..d5d499b 100644
--- a/src-tauri/src/accounts.rs
+++ b/src-tauri/src/accounts.rs
@@ -778,6 +778,10 @@ impl AppState {
     /// the short quota commit still uses the cross-process storage boundary.
     pub(crate) fn acquire_quota_commit_operation(&self) -> Result<OperationGuard<'_>, String> {
         self.ensure_store_ready()?;
+        self.wait_for_operation_lock()
+    }
+
+    fn wait_for_operation_lock(&self) -> Result<OperationGuard<'_>, String> {
         let in_process = self
             .operation_lock
             .lock()
@@ -804,12 +808,12 @@ impl AppState {
     }
 
     /// Updating the installed CLI must not overlap a GSwitch operation that
-    /// may launch App Server. This remains available when account storage
-    /// needs recovery because it never reads or changes saved accounts.
-    pub(crate) fn acquire_cli_update_operation(
-        &self,
-    ) -> Result<OperationGuard<'_>, OperationAcquireFailure> {
-        self.acquire_operation_lock()
+    /// may launch App Server. It waits for GSwitch's own running work, such as
+    /// a quota refresh, instead of reporting it as a conflict. This remains
+    /// available when account storage needs recovery because it never reads
+    /// or changes saved accounts.
+    pub(crate) fn acquire_cli_update_operation(&self) -> Result<OperationGuard<'_>, String> {
+        self.wait_for_operation_lock()
     }
 
     pub(crate) fn acquire_operation_for_switch(
@@ -2867,6 +2871,32 @@ mod tests {
         let _ = fs::remove_dir_all(path.parent().expect("parent"));
     }
 
+    #[test]
+    fn cli_update_waits_for_a_running_operation_instead_of_failing() {
+        use std::{sync::mpsc, thread, time::Duration};
+
+        let path = temp_path("cli-update-waits");
+        let state = AppState::new(path.clone()).expect("state");
+        let refresh = state.acquire_operation().expect("running operation");
+
+        let (result_tx, result_rx) = mpsc::channel();
+        let waiting = state.clone();
+        let worker = thread::spawn(move || {
+            let acquired = waiting.acquire_cli_update_operation().is_ok();
+            result_tx.send(acquired).expect("send result");
+        });
+        assert!(matches!(
+            result_rx.recv_timeout(Duration::from_millis(100)),
+            Err(mpsc::RecvTimeoutError::Timeout)
+        ));
+        drop(refresh);
+        assert!(result_rx
+            .recv_timeout(Duration::from_secs(5))
+            .expect("update proceeded after the operation finished"));
+        worker.join().expect("worker finished");
+        let _ = fs::remove_dir_all(path.parent().expect("parent"));
+    }
+
     #[test]
     fn secret_generation_overflow_fails_before_replacing_the_current_secret() {
         assert!(AppState::next_secret_generation(Some(u64::MAX), 1).is_err());
diff --git a/src-tauri/src/cli_update.rs b/src-tauri/src/cli_update.rs
index 4d8b62b..f371ad6 100644
--- a/src-tauri/src/cli_update.rs
+++ b/src-tauri/src/cli_update.rs
@@ -6,7 +6,7 @@ use std::{
 };
 
 use crate::{
-    accounts::{AppState, OperationAcquireFailure},
+    accounts::AppState,
     app_server, runtime,
     types::{CodexCliInfo, CodexCliUpdateFailure, CodexCliUpdateStatus},
 };
@@ -118,10 +118,7 @@ fn newer_than(latest: &str, installed: &str) -> bool {
 pub fn update(state: &AppState) -> Result<CodexCliInfo, CodexCliUpdateFailure> {
     let _operation = state
         .acquire_cli_update_operation()
-        .map_err(|error| match error {
-            OperationAcquireFailure::Busy => CodexCliUpdateFailure::Busy,
-            OperationAcquireFailure::Failed(_) => CodexCliUpdateFailure::UpdateFailed,
-        })?;
+        .map_err(|_| CodexCliUpdateFailure::UpdateFailed)?;
     let before = inspect();
     if before.version.is_none() {
         return Err(CodexCliUpdateFailure::NotInstalled);
diff --git a/src-tauri/src/types.rs b/src-tauri/src/types.rs
index d79ee85..5694c35 100644
--- a/src-tauri/src/types.rs
+++ b/src-tauri/src/types.rs
@@ -23,7 +23,6 @@ pub enum CodexCliUpdateStatus {
 pub enum CodexCliUpdateFailure {
     NotInstalled,
     Unsupported,
-    Busy,
     CodexOpen,
     UpdateFailed,
     VerificationFailed,
diff --git a/src/App.tsx b/src/App.tsx
index feedfe5..1989973 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -326,7 +326,7 @@ function accountGridHasGlobalMutation(busy: string | null) {
 
 function cliUpdateFailureCode(error: unknown): CodexCliUpdateFailure {
   const code = String(error);
-  if (["not_installed", "unsupported", "busy", "codex_open", "update_failed", "verification_failed"].includes(code)) {
+  if (["not_installed", "unsupported", "codex_open", "update_failed", "verification_failed"].includes(code)) {
     return code as CodexCliUpdateFailure;
   }
   return "update_failed";
@@ -2490,7 +2490,6 @@ export default function App() {
             {cliError ? <p className="cli-error" role="alert">{t(({
               not_installed: "cli.error.notInstalled",
               unsupported: "cli.error.unsupported",
-              busy: "cli.error.busy",
               codex_open: "cli.error.codexOpen",
               update_failed: "cli.error.updateFailed",
               verification_failed: "cli.error.verificationFailed",
diff --git a/src/i18n.ts b/src/i18n.ts
index 2540bce..fb20855 100644
--- a/src/i18n.ts
+++ b/src/i18n.ts
@@ -108,7 +108,6 @@ const en = {
   "cli.guide": "Official install guide",
   "cli.error.notInstalled": "The Codex CLI is unavailable. Install it, then check again.",
   "cli.error.unsupported": "This CLI cannot update itself. Use its installer or package manager.",
-  "cli.error.busy": "Another GSwitch operation is running. Try again when it finishes.",
   "cli.error.codexOpen": "Quit Codex, then try the update again.",
   "cli.error.updateFailed": "The official Codex update did not finish. Try updating from a terminal or use the install guide.",
   "cli.error.verificationFailed": "The update command finished, but GSwitch could not read the installed CLI version. Check the installation.",
@@ -471,7 +470,6 @@ const zhCN: Record<keyof typeof en, string> = {
   "cli.guide": "官方安装指南",
   "cli.error.notInstalled": "Codex CLI 不可用。请安装后重新检查。",
   "cli.error.unsupported": "此 CLI 不支持自行更新。请通过原安装程序或包管理器更新。",
-  "cli.error.busy": "另一项 GSwitch 操作正在进行，请完成后重试。",
   "cli.error.codexOpen": "请退出 Codex 后再更新。",
   "cli.error.updateFailed": "Codex 官方更新未完成。请在终端中更新，或查看安装指南。",
   "cli.error.verificationFailed": "更新命令已结束，但 GSwitch 无法读取已安装的 CLI 版本。请检查安装。",
diff --git a/src/types.ts b/src/types.ts
index e9086b6..883face 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -36,7 +36,6 @@ export interface CodexCliInfo {
 export type CodexCliUpdateFailure =
   | "not_installed"
   | "unsupported"
-  | "busy"
   | "codex_open"
   | "update_failed"
   | "verification_failed";