diff --git a/README.md b/README.md
index 90c4680..dc09f24 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ Timer\timeout(…);
 
 ### timeout()
 
-The `timeout(PromiseInterface<mixed, Exception|mixed> $promise, float $time, ?LoopInterface $loop = null): PromiseInterface<mixed, TimeoutException|Exception|mixed>` function can be used to
+The `timeout(PromiseInterface<mixed, Throwable|mixed> $promise, float $time, ?LoopInterface $loop = null): PromiseInterface<mixed, TimeoutException|Throwable|mixed>` function can be used to
 cancel operations that take *too long*.
 
 You need to pass in an input `$promise` that represents a pending operation
@@ -104,20 +104,16 @@ React\Promise\Timer\timeout($promise, 10.0)->then(
 );
 ```
 
-Or if you're using [react/promise v2.2.0](https://github.com/reactphp/promise) or up:
+Or if you're using [react/promise v3](https://github.com/reactphp/promise):
 
 ```php
-React\Promise\Timer\timeout($promise, 10.0)
-    ->then(function ($value) {
-        // the operation finished within 10.0 seconds
-    })
-    ->otherwise(function (React\Promise\Timer\TimeoutException $error) {
-        // the operation has failed due to a timeout
-    })
-    ->otherwise(function ($error) {
-        // the input operation has failed due to some other error
-    })
-;
+React\Promise\Timer\timeout($promise, 10.0)->then(function ($value) {
+    // the operation finished within 10.0 seconds
+})->catch(function (React\Promise\Timer\TimeoutException $error) {
+    // the operation has failed due to a timeout
+})->catch(function (Throwable $error) {
+    // the input operation has failed due to some other error
+});
 ```
 
 As discussed above, the [`timeout()`](#timeout) function will take care of
diff --git a/src/functions.php b/src/functions.php
index a8b1fd5..b72bf36 100644
--- a/src/functions.php
+++ b/src/functions.php
@@ -64,20 +64,16 @@
  * );
  * ```
  *
- * Or if you're using [react/promise v2.2.0](https://github.com/reactphp/promise) or up:
+ * Or if you're using [react/promise v3](https://github.com/reactphp/promise):
  *
  * ```php
- * React\Promise\Timer\timeout($promise, 10.0)
- *     ->then(function ($value) {
- *         // the operation finished within 10.0 seconds
- *     })
- *     ->otherwise(function (React\Promise\Timer\TimeoutException $error) {
- *         // the operation has failed due to a timeout
- *     })
- *     ->otherwise(function ($error) {
- *         // the input operation has failed due to some other error
- *     })
- * ;
+ * React\Promise\Timer\timeout($promise, 10.0)->then(function ($value) {
+ *     // the operation finished within 10.0 seconds
+ * })->catch(function (React\Promise\Timer\TimeoutException $error) {
+ *     // the operation has failed due to a timeout
+ * })->catch(function (Throwable $error) {
+ *     // the input operation has failed due to some other error
+ * });
  * ```
  *
  * As discussed above, the [`timeout()`](#timeout) function will take care of
@@ -133,10 +129,10 @@
  * For more details on the promise primitives, please refer to the
  * [Promise documentation](https://github.com/reactphp/promise#functions).
  *
- * @param PromiseInterface<mixed, \Exception|mixed> $promise
+ * @param PromiseInterface<mixed, \Throwable|mixed> $promise
  * @param float $time
  * @param ?LoopInterface $loop
- * @return PromiseInterface<mixed, TimeoutException|\Exception|mixed>
+ * @return PromiseInterface<mixed, TimeoutException|\Throwable|mixed>
  */
 function timeout(PromiseInterface $promise, $time, LoopInterface $loop = null)
 {