diff --git a/fixtures/blocks/src/Router.js b/fixtures/blocks/src/Router.js
index 63e15aabfa0..81dd68dd6a8 100644
--- a/fixtures/blocks/src/Router.js
+++ b/fixtures/blocks/src/Router.js
@@ -49,9 +49,7 @@ function reducer(state, action) {
 
 function Router() {
   const [state, dispatch] = useReducer(reducer, initialState);
-  const [startTransition, isPending] = useTransition({
-    timeoutMs: 1500,
-  });
+  const [startTransition, isPending] = useTransition();
 
   useEffect(() => {
     document.body.style.cursor = isPending ? 'wait' : '';
diff --git a/packages/react-debug-tools/src/__tests__/ReactHooksInspectionIntegration-test.js b/packages/react-debug-tools/src/__tests__/ReactHooksInspectionIntegration-test.js
index 013caecb11b..019eff4a8a3 100644
--- a/packages/react-debug-tools/src/__tests__/ReactHooksInspectionIntegration-test.js
+++ b/packages/react-debug-tools/src/__tests__/ReactHooksInspectionIntegration-test.js
@@ -572,9 +572,7 @@ describe('ReactHooksInspectionIntegration', () => {
 
   it('should support composite useDeferredValue hook', () => {
     function Foo(props) {
-      React.useDeferredValue('abc', {
-        timeoutMs: 500,
-      });
+      React.useDeferredValue('abc');
       const [state] = React.useState(() => 'hello', []);
       return <div>{state}</div>;
     }
diff --git a/packages/react-reconciler/src/__tests__/ReactHooks-test.internal.js b/packages/react-reconciler/src/__tests__/ReactHooks-test.internal.js
index f82efce9ef9..0667dc47ee1 100644
--- a/packages/react-reconciler/src/__tests__/ReactHooks-test.internal.js
+++ b/packages/react-reconciler/src/__tests__/ReactHooks-test.internal.js
@@ -1474,8 +1474,7 @@ describe('ReactHooks', () => {
 
     if (__EXPERIMENTAL__) {
       const useTransitionHelper = () => React.useTransition();
-      const useDeferredValueHelper = () =>
-        React.useDeferredValue(0, {timeoutMs: 1000});
+      const useDeferredValueHelper = () => React.useDeferredValue(0);
 
       orderedHooks.push(useTransitionHelper);
       orderedHooks.push(useDeferredValueHelper);
diff --git a/packages/react-reconciler/src/__tests__/ReactHooksWithNoopRenderer-test.js b/packages/react-reconciler/src/__tests__/ReactHooksWithNoopRenderer-test.js
index f56577e8ffe..ff2a667153d 100644
--- a/packages/react-reconciler/src/__tests__/ReactHooksWithNoopRenderer-test.js
+++ b/packages/react-reconciler/src/__tests__/ReactHooksWithNoopRenderer-test.js
@@ -3644,9 +3644,7 @@ describe('ReactHooksWithNoopRenderer', () => {
       let _setText;
       function App() {
         const [text, setText] = useState('A');
-        const deferredText = useDeferredValue(text, {
-          timeoutMs: 500,
-        });
+        const deferredText = useDeferredValue(text);
         _setText = setText;
         return (
           <>