diff --git a/tests/TestApp/Model/Table/CommentsTable.php b/tests/TestApp/Model/Table/CommentsTable.php
index f41cd15b..6f5a2529 100644
--- a/tests/TestApp/Model/Table/CommentsTable.php
+++ b/tests/TestApp/Model/Table/CommentsTable.php
@@ -14,7 +14,7 @@ public function initialize(array $config): void
     {
         $this->addBehavior('Search.Search');
 
-        $this->searchManager()
+        $this->getBehavior('Search')->searchManager()
             ->value('Comments.foo')
             ->like('Comments.search', ['filterEmpty' => true, 'multiValue' => true])
             ->value('Comments.baz')
diff --git a/tests/TestApp/Model/Table/SectionsTable.php b/tests/TestApp/Model/Table/SectionsTable.php
index c94649e9..64133339 100644
--- a/tests/TestApp/Model/Table/SectionsTable.php
+++ b/tests/TestApp/Model/Table/SectionsTable.php
@@ -14,7 +14,7 @@ public function initialize(array $config): void
     {
         $this->addBehavior('Search.Search');
 
-        $this->searchManager()
+        $this->getBehavior('Search')->searchManager()
             ->useCollection('frontend')
             ->value('title')
             ->useCollection('backend')
diff --git a/tests/TestCase/Controller/Component/SearchComponentTest.php b/tests/TestCase/Controller/Component/SearchComponentTest.php
index 91382c70..70c27a24 100644
--- a/tests/TestCase/Controller/Component/SearchComponentTest.php
+++ b/tests/TestCase/Controller/Component/SearchComponentTest.php
@@ -426,6 +426,21 @@ protected function _execute(array $data = []): bool
             }
         };
 
+        // CakePHP 5.3+ uses process() instead of _execute()
+        if (method_exists(SearchForm::class, 'process')) {
+            $mock = new class extends SearchForm
+            {
+                public static $called = false;
+
+                protected function process(array $data = []): bool
+                {
+                    static::$called = true;
+
+                    return true;
+                }
+            };
+        }
+
         $this->Search->setConfig('formClass', $mock::class);
 
         $this->Controller->setRequest($request);
diff --git a/tests/TestCase/Model/Behavior/SearchBehaviorTest.php b/tests/TestCase/Model/Behavior/SearchBehaviorTest.php
index 498d43f6..5efe8c78 100644
--- a/tests/TestCase/Model/Behavior/SearchBehaviorTest.php
+++ b/tests/TestCase/Model/Behavior/SearchBehaviorTest.php
@@ -182,7 +182,7 @@ public function testFinder()
             'search' => 'b',
             'group' => 'main',
         ];
-        $this->assertFalse($this->Articles->isSearch());
+        $this->assertFalse($this->Articles->getBehavior('Search')->isSearch());
 
         $query = $this->Articles->find('search', search: $queryString);
         $this->assertEquals(3, $query->clause('where')->count());
@@ -204,7 +204,7 @@ public function testFinder()
             ],
         );
         $this->assertEquals(2, $query->clause('where')->count());
-        $this->assertTrue($this->Articles->isSearch());
+        $this->assertTrue($this->Articles->getBehavior('Search')->isSearch());
     }
 
     /**
@@ -227,7 +227,7 @@ public function testEmptyValues()
         $this->Articles->addBehavior('Search.Search', [
             'emptyValues' => ['a'],
         ]);
-        $this->Articles->searchManager()
+        $this->Articles->getBehavior('Search')->searchManager()
             ->value('foo')
             ->like('search')
             ->value('baz')
@@ -239,7 +239,7 @@ public function testEmptyValues()
         $this->Articles->addBehavior('Search.Search', [
             'emptyValues' => ['a', '0'],
         ]);
-        $this->Articles->searchManager()
+        $this->Articles->getBehavior('Search')->searchManager()
             ->value('foo')
             ->like('search')
             ->value('baz')
@@ -315,14 +315,14 @@ public static function collectionFinderProvider()
      */
     public function testSearchManager()
     {
-        $manager = $this->Articles->searchManager();
+        $manager = $this->Articles->getBehavior('Search')->searchManager();
         $this->assertInstanceOf('\Search\Manager', $manager);
     }
 
     public function testExtraParams(): void
     {
         $result = [];
-        $manager = $this->Articles->searchManager();
+        $manager = $this->Articles->getBehavior('Search')->searchManager();
         $manager->callback('field1', [
             'callback' => function (SelectQuery $query, array $args) use (&$result) {
                 $result = $args;