diff --git a/api/composer.json b/api/composer.json
index ef94ac7..d4a5b86 100644
--- a/api/composer.json
+++ b/api/composer.json
@@ -21,7 +21,8 @@
         "slim/psr7": "^1.3",
         "php-di/slim-bridge": "^3.1.0",
         "jetbrains/phpstorm-attributes": "^1.0.0",
-        "myclabs/php-enum": "^1.8.0"
+        "myclabs/php-enum": "^1.8.0",
+        "ext-pdo": "*"
     },
     "require-dev": {
         "phpstan/phpstan": "^0.12.80",