diff --git a/tests/php/FacetedSearch/Product/SearchProviderTest.php b/tests/php/FacetedSearch/Product/SearchProviderTest.php
index 9f73b5817..e763cbce1 100644
--- a/tests/php/FacetedSearch/Product/SearchProviderTest.php
+++ b/tests/php/FacetedSearch/Product/SearchProviderTest.php
@@ -110,7 +110,7 @@ function ($arg) use ($properties) {
         return $filter;
     }
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $this->database = Mockery::mock(Db::class);
         $this->context = Mockery::mock(Context::class);
diff --git a/tests/php/FacetedSearch/Product/SearchTest.php b/tests/php/FacetedSearch/Product/SearchTest.php
index ac6ad153a..cdc71fc7e 100644
--- a/tests/php/FacetedSearch/Product/SearchTest.php
+++ b/tests/php/FacetedSearch/Product/SearchTest.php
@@ -39,7 +39,7 @@ class SearchTest extends MockeryTestCase
      */
     private $search;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $mock = Mockery::mock(Configuration::class);
         $mock->shouldReceive('get')