diff --git a/composer.json b/composer.json
index b446a7e4b268..c3f5319fe2b2 100644
--- a/composer.json
+++ b/composer.json
@@ -12,6 +12,7 @@
     "require": {
         "php": "^8.1",
         "ext-intl": "*",
+        "ext-json": "*",
         "ext-mbstring": "*",
         "laminas/laminas-escaper": "^2.13",
         "psr/log": "^2.0"
@@ -37,9 +38,12 @@
     },
     "suggest": {
         "ext-curl": "If you use CURLRequest class",
+        "ext-dom": "If you use TestResponse",
         "ext-exif": "If you run Image class tests",
+        "ext-fileinfo": "Improves mime type detection for files",
         "ext-gd": "If you use Image class GDHandler",
         "ext-imagick": "If you use Image class ImageMagickHandler",
+        "ext-libxml": "If you use TestResponse",
         "ext-memcache": "If you use Cache class MemcachedHandler with Memcache",
         "ext-memcached": "If you use Cache class MemcachedHandler with Memcached",
         "ext-mysqli": "If you use MySQL",
@@ -47,6 +51,8 @@
         "ext-pgsql": "If you use PostgreSQL",
         "ext-readline": "Improves CLI::input() usability",
         "ext-redis": "If you use Cache class RedisHandler",
+        "ext-simplexml": "If you format XML",
+        "ext-sqlite3": "If you use SQLite3",
         "ext-sqlsrv": "If you use SQL Server",
         "ext-xdebug": "If you use CIUnitTestCase::assertHeaderEmitted()"
     },