diff --git a/ext/spl/spl_fixedarray.stub.php b/ext/spl/spl_fixedarray.stub.php
index e4b8fdce065bf..8ca6497be085c 100644
--- a/ext/spl/spl_fixedarray.stub.php
+++ b/ext/spl/spl_fixedarray.stub.php
@@ -6,7 +6,10 @@ class SplFixedArray implements IteratorAggregate, ArrayAccess, Countable, JsonSe
 {
     public function __construct(int $size = 0) {}
 
-    /** @tentative-return-type */
+    /**
+     * @tentative-return-type
+     * @deprecated
+     */
     public function __wakeup(): void {}
 
     public function __serialize(): array {}
diff --git a/ext/spl/spl_fixedarray_arginfo.h b/ext/spl/spl_fixedarray_arginfo.h
index ece12b998b0c6..aa92494a8f7d9 100644
--- a/ext/spl/spl_fixedarray_arginfo.h
+++ b/ext/spl/spl_fixedarray_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: 35a9585a433b9e3d57263c07ccafd1b6edd2f10b */
+ * Stub hash: 453f55b59c0b61f2c8a41b17694be74c3e0a6171 */
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_class_SplFixedArray___construct, 0, 0, 0)
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, size, IS_LONG, 0, "0")
@@ -72,7 +72,7 @@ ZEND_METHOD(SplFixedArray, jsonSerialize);
 
 static const zend_function_entry class_SplFixedArray_methods[] = {
 	ZEND_ME(SplFixedArray, __construct, arginfo_class_SplFixedArray___construct, ZEND_ACC_PUBLIC)
-	ZEND_ME(SplFixedArray, __wakeup, arginfo_class_SplFixedArray___wakeup, ZEND_ACC_PUBLIC)
+	ZEND_ME(SplFixedArray, __wakeup, arginfo_class_SplFixedArray___wakeup, ZEND_ACC_PUBLIC|ZEND_ACC_DEPRECATED)
 	ZEND_ME(SplFixedArray, __serialize, arginfo_class_SplFixedArray___serialize, ZEND_ACC_PUBLIC)
 	ZEND_ME(SplFixedArray, __unserialize, arginfo_class_SplFixedArray___unserialize, ZEND_ACC_PUBLIC)
 	ZEND_ME(SplFixedArray, count, arginfo_class_SplFixedArray_count, ZEND_ACC_PUBLIC)