diff --git a/CHANGELOG.md b/CHANGELOG.md
index 572dace..b5f8462 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### CLI
+
+- Increase the default OAuth browser wait from 60 seconds to 5 minutes so hosted MCP sign-ins have enough time for account and permission review.
+
 ### Config
 
 - Preserve existing stdio executable paths that contain spaces instead of
diff --git a/README.md b/README.md
index 302918a..b9238b6 100644
--- a/README.md
+++ b/README.md
@@ -172,7 +172,7 @@ Helpful flags:
 
 > Tip: You can skip the verb entirely—`mcporter firecrawl` automatically runs `mcporter list firecrawl`, and dotted tokens like `mcporter linear.list_issues` dispatch to the call command (typo fixes included).
 
-Timeouts default to 30 s; override with `MCPORTER_LIST_TIMEOUT` or `MCPORTER_CALL_TIMEOUT` when you expect slow startups. OAuth browser handshakes get a separate 60 s grace period; pass `--oauth-timeout <ms>` (or export `MCPORTER_OAUTH_TIMEOUT_MS`) when you need the CLI to bail out faster while you diagnose stubborn auth flows.
+Timeouts default to 30 s; override with `MCPORTER_LIST_TIMEOUT` or `MCPORTER_CALL_TIMEOUT` when you expect slow startups. OAuth browser handshakes get a separate 5 minute grace period; pass `--oauth-timeout <ms>` (or export `MCPORTER_OAUTH_TIMEOUT_MS`) when you need the CLI to bail out faster while you diagnose stubborn auth flows.
 
 ### Try an MCP without editing config
 
diff --git a/docs/hang-debug.md b/docs/hang-debug.md
index cb14fc3..14c49f1 100644
--- a/docs/hang-debug.md
+++ b/docs/hang-debug.md
@@ -27,7 +27,7 @@ culprit is a child MCP server process that keeps the stdio transport alive.
    gathering diagnostics.
 6. **Clamp OAuth waits** – when the browser-based sign-in never completes,
    run with `--oauth-timeout <ms>` (or `MCPORTER_OAUTH_TIMEOUT_MS`) so the CLI
-   tears down the pending flow instead of waiting the full minute.
+   tears down the pending flow instead of waiting the full 5 minutes.
 
 ## Example Session
 
diff --git a/docs/tmux.md b/docs/tmux.md
index 4831a8e..28a6e5d 100644
--- a/docs/tmux.md
+++ b/docs/tmux.md
@@ -30,4 +30,4 @@ Use `tmux` to verify whether a CLI command actually exits or is stalled on open
    tmux kill-session -t mcporter-check
    ```
 
-This workflow makes it easy to confirm whether `mcporter` commands return promptly after shutdown changes (for example, when debugging lingering MCP stdio servers). Use `MCPORTER_DEBUG_HANG=1` to emit active-handle diagnostics inside the tmux session when necessary. For OAuth flows that keep a session open, set `--oauth-timeout 5000` (or `MCPORTER_OAUTH_TIMEOUT_MS=5000`) so the CLI proves it can exit without waiting a full minute for a browser callback.
+This workflow makes it easy to confirm whether `mcporter` commands return promptly after shutdown changes (for example, when debugging lingering MCP stdio servers). Use `MCPORTER_DEBUG_HANG=1` to emit active-handle diagnostics inside the tmux session when necessary. For OAuth flows that keep a session open, set `--oauth-timeout 5000` (or `MCPORTER_OAUTH_TIMEOUT_MS=5000`) so the CLI proves it can exit without waiting the full 5 minute default for a browser callback.
diff --git a/src/cli/help-output.ts b/src/cli/help-output.ts
index 0467498..2420975 100644
--- a/src/cli/help-output.ts
+++ b/src/cli/help-output.ts
@@ -144,7 +144,7 @@ function formatGlobalFlags(colorize: boolean): string {
     },
     {
       flag: '--oauth-timeout <ms>',
-      summary: 'Time to wait for browser-based OAuth before giving up (default 60000)',
+      summary: 'Time to wait for browser-based OAuth before giving up (default 300000)',
     },
   ];
   const formatted = entries.map((entry) => `  ${entry.flag.padEnd(34)}${entry.summary}`);
diff --git a/src/runtime/oauth.ts b/src/runtime/oauth.ts
index aaababb..495f0f9 100644
--- a/src/runtime/oauth.ts
+++ b/src/runtime/oauth.ts
@@ -4,7 +4,7 @@ import type { Logger } from '../logging.js';
 import type { OAuthSession } from '../oauth.js';
 import { isUnauthorizedError } from '../runtime-oauth-support.js';
 
-export const DEFAULT_OAUTH_CODE_TIMEOUT_MS = 60_000;
+export const DEFAULT_OAUTH_CODE_TIMEOUT_MS = 300_000;
 const OAUTH_FLOW_ERROR = Symbol('oauth-flow-error');
 const POST_AUTH_CONNECT_ERROR = Symbol('post-auth-connect-error');
 
diff --git a/tests/runtime-oauth-utils.test.ts b/tests/runtime-oauth-utils.test.ts
index 18d8e42..d2ef08d 100644
--- a/tests/runtime-oauth-utils.test.ts
+++ b/tests/runtime-oauth-utils.test.ts
@@ -3,9 +3,9 @@ import { parseOAuthTimeout } from '../src/runtime/oauth.js';
 
 describe('parseOAuthTimeout', () => {
   it('falls back to default on missing or invalid values', () => {
-    expect(parseOAuthTimeout(undefined)).toBe(60_000);
-    expect(parseOAuthTimeout('not-a-number')).toBe(60_000);
-    expect(parseOAuthTimeout('-500')).toBe(60_000);
+    expect(parseOAuthTimeout(undefined)).toBe(300_000);
+    expect(parseOAuthTimeout('not-a-number')).toBe(300_000);
+    expect(parseOAuthTimeout('-500')).toBe(300_000);
   });
 
   it('parses valid integer inputs', () => {