diff --git a/composer.json b/composer.json
index ddc61504f..cebc9934d 100644
--- a/composer.json
+++ b/composer.json
@@ -29,7 +29,6 @@
     "php": "^8.1",
     "ext-json": "*",
     "ext-curl": "*",
-    "ext-gd": "*",
     "guzzlehttp/guzzle": "^7.4",
     "psr/log": "^3.0",
     "psr/simple-cache": "^3.0"
@@ -41,6 +40,7 @@
     }
   },
   "require-dev": {
+    "ext-gd": "*",
     "symfony/cache": "^6.1.3",
     "phpunit/phpunit": "^10.5",
     "phpstan/phpstan": "^1.8.2",
diff --git a/src/Collection.php b/src/Collection.php
index 4c6fa85a9..76bd5d834 100644
--- a/src/Collection.php
+++ b/src/Collection.php
@@ -7,7 +7,7 @@
  */
 class Collection implements \Iterator
 {
-    public const defaultPageSize = 24;
+    public const defaultPageSize = 20;
 
     /** @var array<int, Document> */
     private array $listDocuments  = [];