diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 8d198a1b7..0e7d0ed3a 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -22,9 +22,6 @@ jobs:
             drupal-core: '10.2.x'
             phpstan: '0'
           # We only need to run PHPStan once on the latest PHP version.
-          - php-versions: '8.3'
-            drupal-core: '10.3.x'
-            phpstan: '1'
           - php-versions: '8.3'
             drupal-core: '11.0.x'
             phpstan: '1'
diff --git a/src/GraphQL/Utility/FileUpload.php b/src/GraphQL/Utility/FileUpload.php
index 7d1aff08c..baad4374c 100644
--- a/src/GraphQL/Utility/FileUpload.php
+++ b/src/GraphQL/Utility/FileUpload.php
@@ -514,7 +514,6 @@ protected function prepareFilename(string $filename, array &$validators): string
         // If the file will be rejected anyway due to a disallowed extension, it
         // should not be renamed; rather, we'll let fileValidator service
         // to validate FileExtension reject it below.
-
         $passes_validation = FALSE;
         if (!empty($validators['FileExtension']['extensions'])) {
           /** @var \Drupal\file\FileInterface $file */
diff --git a/src/Plugin/GraphQL/DataProducer/Entity/Fields/Image/ImageDerivative.php b/src/Plugin/GraphQL/DataProducer/Entity/Fields/Image/ImageDerivative.php
index a77d32ad7..b727f0a49 100644
--- a/src/Plugin/GraphQL/DataProducer/Entity/Fields/Image/ImageDerivative.php
+++ b/src/Plugin/GraphQL/DataProducer/Entity/Fields/Image/ImageDerivative.php
@@ -98,11 +98,18 @@ public function resolve(FileInterface $entity = NULL, $style, RefinableCacheable
     $metadata->addCacheableDependency($access);
     if ($access->isAllowed() && $image_style = ImageStyle::load($style)) {
 
-      /** @var \Drupal\Core\Image\ImageInterface $image */
-      $image = \Drupal::service('image.factory')->get($entity->getFileUri());
-      if ($image->isValid()) {
-        $width = $image->getWidth();
-        $height = $image->getHeight();
+      // @phpstan-ignore-next-line
+      $width = $entity->width;
+      // @phpstan-ignore-next-line
+      $height = $entity->height;
+
+      if (!isset($width) || !isset($height)) {
+        /** @var \Drupal\Core\Image\ImageInterface $image */
+        $image = \Drupal::service('image.factory')->get($entity->getFileUri());
+        if ($image->isValid()) {
+          $width = $image->getWidth();
+          $height = $image->getHeight();
+        }
       }
 
       // Determine the dimensions of the styled image.
diff --git a/src/Routing/QueryRouteEnhancer.php b/src/Routing/QueryRouteEnhancer.php
index ae063b4f9..079f90e49 100644
--- a/src/Routing/QueryRouteEnhancer.php
+++ b/src/Routing/QueryRouteEnhancer.php
@@ -92,6 +92,7 @@ protected function assertValidPostRequestHeaders(Request $request) : void {
       return;
     }
 
+    // @phpstan-ignore-next-line
     $content_format = method_exists($request, 'getContentTypeFormat') ? $request->getContentTypeFormat() : $request->getContentType();
     if ($content_format === NULL) {
       // Symfony before 5.4 does not detect "multipart/form-data", check for it
diff --git a/tests/src/Kernel/DataProducer/Entity/Fields/Image/ImageDerivativeTest.php b/tests/src/Kernel/DataProducer/Entity/Fields/Image/ImageDerivativeTest.php
index 375fff3ae..18ef12b7c 100644
--- a/tests/src/Kernel/DataProducer/Entity/Fields/Image/ImageDerivativeTest.php
+++ b/tests/src/Kernel/DataProducer/Entity/Fields/Image/ImageDerivativeTest.php
@@ -62,6 +62,11 @@ public function setUp(): void {
 
     $this->file->method('getFileUri')->willReturn($this->fileUri);
     $this->file->method('access')->willReturn((new AccessResultAllowed())->addCacheTags(['test_tag']));
+    // @todo Remove hard-coded properties and only rely on image factory.
+    // @phpstan-ignore-next-line
+    @$this->file->width = 600;
+    // @phpstan-ignore-next-line
+    @$this->file->height = 400;
 
     $this->style = ImageStyle::create(['name' => 'test_style']);
     $effect = [
diff --git a/tests/src/Kernel/DataProducer/EntityReferenceTest.php b/tests/src/Kernel/DataProducer/EntityReferenceTest.php
index 3b7700eff..976ce0e14 100644
--- a/tests/src/Kernel/DataProducer/EntityReferenceTest.php
+++ b/tests/src/Kernel/DataProducer/EntityReferenceTest.php
@@ -5,9 +5,8 @@
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
 use Drupal\node\Entity\Node;
 use Drupal\node\Entity\NodeType;
-use Drupal\Tests\graphql\Kernel\GraphQLTestBase;
 use Drupal\Tests\field\Traits\EntityReferenceFieldCreationTrait;
-
+use Drupal\Tests\graphql\Kernel\GraphQLTestBase;
 
 /**
  * Tests the entity_reference data producers.