diff --git a/bun.lock b/bun.lock
index 9077240f..93cdd841 100644
--- a/bun.lock
+++ b/bun.lock
@@ -43,7 +43,6 @@
         "dotenv": "^16.6.1",
         "eslint": "^9",
         "eslint-config-prettier": "^10",
-        "react-test-renderer": "^19.2.0",
         "shx": "^0.3.3",
         "ts-node": "^10",
         "tsx": "^4.20.6",
@@ -1519,8 +1518,6 @@
 
     "react-dom": ["react-dom@19.2.3", "", { "dependencies": { "scheduler": "^0.27.0" }, "peerDependencies": { "react": "^19.2.3" } }, "sha512-yELu4WmLPw5Mr/lmeEpox5rw3RETacE++JgHqQzd2dg+YbJuat3jH4ingc+WPZhxaoFzdv9y33G+F7Nl5O0GBg=="],
 
-    "react-is": ["react-is@19.2.3", "", {}, "sha512-qJNJfu81ByyabuG7hPFEbXqNcWSU3+eVus+KJs+0ncpGfMyYdvSmxiJxbWR65lYi1I+/0HBcliO029gc4F+PnA=="],
-
     "react-markdown": ["react-markdown@10.1.0", "", { "dependencies": { "@types/hast": "^3.0.0", "@types/mdast": "^4.0.0", "devlop": "^1.0.0", "hast-util-to-jsx-runtime": "^2.0.0", "html-url-attributes": "^3.0.0", "mdast-util-to-hast": "^13.0.0", "remark-parse": "^11.0.0", "remark-rehype": "^11.0.0", "unified": "^11.0.0", "unist-util-visit": "^5.0.0", "vfile": "^6.0.0" }, "peerDependencies": { "@types/react": ">=18", "react": ">=18" } }, "sha512-qKxVopLT/TyA6BX3Ue5NwabOsAzm0Q7kAPwq6L+wWDwisYs7R8vZ0nRXqq6rkueboxpkjvLGU9fWifiX/ZZFxQ=="],
 
     "react-reconciler": ["react-reconciler@0.33.0", "", { "dependencies": { "scheduler": "^0.27.0" }, "peerDependencies": { "react": "^19.2.0" } }, "sha512-KetWRytFv1epdpJc3J4G75I4WrplZE5jOL7Yq0p34+OVOKF4Se7WrdIdVC45XsSSmUTlht2FM/fM1FZb1mfQeA=="],
@@ -1533,8 +1530,6 @@
 
     "react-style-singleton": ["react-style-singleton@2.2.3", "", { "dependencies": { "get-nonce": "^1.0.0", "tslib": "^2.0.0" }, "peerDependencies": { "@types/react": "*", "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react"] }, "sha512-b6jSvxvVnyptAiLjbkWLE/lOnR4lfTtDAl+eUC7RZy+QQWc6wRzIV2CE6xBuMmDxc2qIihtDCZD5NPOFl7fRBQ=="],
 
-    "react-test-renderer": ["react-test-renderer@19.2.3", "", { "dependencies": { "react-is": "^19.2.3", "scheduler": "^0.27.0" }, "peerDependencies": { "react": "^19.2.3" } }, "sha512-TMR1LnSFiWZMJkCgNf5ATSvAheTT2NvKIwiVwdBPHxjBI7n/JbWd4gaZ16DVd9foAXdvDz+sB5yxZTwMjPRxpw=="],
-
     "react-textarea-autosize": ["react-textarea-autosize@8.5.9", "", { "dependencies": { "@babel/runtime": "^7.20.13", "use-composed-ref": "^1.3.0", "use-latest": "^1.2.1" }, "peerDependencies": { "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0" } }, "sha512-U1DGlIQN5AwgjTyOEnI1oCcMuEr1pv1qOtklB2l4nyMGbHzWrI0eFsYK0zos2YWqAolJyG0IWJaqWmWj5ETh0A=="],
 
     "read-cache": ["read-cache@1.0.0", "", { "dependencies": { "pify": "^2.3.0" } }, "sha512-Owdv/Ft7IjOgm/i0xvNDZ1LrRANRfew4b2prF3OWMQLxLfu3bS8FVhCsrSCMK4lR56Y9ya+AThoTpDCTxCmpRA=="],
diff --git a/cli/package.json b/cli/package.json
index 2a4d6854..0d02f2ce 100644
--- a/cli/package.json
+++ b/cli/package.json
@@ -65,8 +65,7 @@
     "ts-node": "^10",
     "tsx": "^4.20.6",
     "typescript": "^5",
-    "vitest": "^3.2.4",
-    "react-test-renderer": "^19.2.0"
+    "vitest": "^3.2.4"
   },
   "resolutions": {
     "whatwg-url": "14.2.0",
diff --git a/cli/src/ui/ink/useSwitchControls.test.ts b/cli/src/ui/ink/useSwitchControls.test.ts
index 7612071d..d9ef1542 100644
--- a/cli/src/ui/ink/useSwitchControls.test.ts
+++ b/cli/src/ui/ink/useSwitchControls.test.ts
@@ -1,5 +1,6 @@
-import React, { useEffect } from 'react';
-import TestRenderer, { act, type ReactTestRenderer } from 'react-test-renderer';
+import React, { act, useEffect } from 'react';
+import { PassThrough } from 'node:stream';
+import { render, type Instance } from 'ink';
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 import { useSwitchControls, type ConfirmationMode, type ActionInProgress } from './useSwitchControls';
 
@@ -16,11 +17,48 @@ type SwitchState = {
 
 let inputHandler: ((input: string, key: Key) => void | Promise<void>) | null = null;
 
-vi.mock('ink', () => ({
-    useInput: (handler: (input: string, key: Key) => void | Promise<void>) => {
-        inputHandler = handler;
-    }
-}));
+vi.mock('ink', async () => {
+    const actual = await vi.importActual<typeof import('ink')>('ink');
+    return {
+        ...actual,
+        useInput: (handler: (input: string, key: Key) => void | Promise<void>) => {
+            inputHandler = handler;
+        }
+    };
+});
+
+const createInkStreams = (): {
+    stdout: NodeJS.WriteStream;
+    stderr: NodeJS.WriteStream;
+    stdin: NodeJS.ReadStream;
+} => {
+    const stdout = new PassThrough() as NodeJS.WriteStream & {
+        isTTY?: boolean;
+        columns?: number;
+        rows?: number;
+    };
+    const stderr = new PassThrough() as NodeJS.WriteStream & {
+        isTTY?: boolean;
+        columns?: number;
+        rows?: number;
+    };
+    const stdin = new PassThrough() as NodeJS.ReadStream & {
+        isTTY?: boolean;
+    };
+
+    Object.assign(stdout, { isTTY: true, columns: 80, rows: 24 });
+    Object.assign(stderr, { isTTY: true, columns: 80, rows: 24 });
+    Object.assign(stdin, { isTTY: false });
+
+    return { stdout, stderr, stdin };
+};
+
+const getActEnvironment = (): boolean | undefined =>
+    (globalThis as typeof globalThis & { IS_REACT_ACT_ENVIRONMENT?: boolean }).IS_REACT_ACT_ENVIRONMENT;
+
+const setActEnvironment = (value: boolean | undefined) => {
+    (globalThis as typeof globalThis & { IS_REACT_ACT_ENVIRONMENT?: boolean }).IS_REACT_ACT_ENVIRONMENT = value;
+};
 
 function HookProbe(props: {
     onExit?: () => void;
@@ -41,18 +79,27 @@ function HookProbe(props: {
 }
 
 describe('useSwitchControls', () => {
-    let renderer: ReactTestRenderer | null = null;
+    let renderer: Instance | null = null;
     let latestState: SwitchState | null = null;
+    let previousActEnvironment: boolean | undefined;
 
     const mount = async (opts: { onExit?: () => void; onSwitch?: () => void }) => {
+        const { stdout, stderr, stdin } = createInkStreams();
         await act(async () => {
-            renderer = TestRenderer.create(
+            renderer = render(
                 React.createElement(HookProbe, {
                     ...opts,
                     onState: (state) => {
                         latestState = state;
                     }
-                })
+                }),
+                {
+                    stdout,
+                    stderr,
+                    stdin,
+                    exitOnCtrlC: false,
+                    patchConsole: false
+                }
             );
         });
     };
@@ -84,20 +131,26 @@ describe('useSwitchControls', () => {
     };
 
     beforeEach(() => {
+        previousActEnvironment = getActEnvironment();
+        setActEnvironment(true);
         vi.useFakeTimers();
         inputHandler = null;
         latestState = null;
     });
 
-    afterEach(() => {
+    afterEach(async () => {
+        await act(async () => {
+            vi.runOnlyPendingTimers();
+        });
         if (renderer) {
-            act(() => {
-                renderer?.unmount();
+            await act(async () => {
+                renderer.unmount();
             });
+            renderer.cleanup();
             renderer = null;
         }
-        vi.runOnlyPendingTimers();
         vi.useRealTimers();
+        setActEnvironment(previousActEnvironment);
     });
 
     it('forwards Ctrl-C to process when onExit is missing', async () => {