diff --git a/composer.json b/composer.json
index f7f0902..9675178 100644
--- a/composer.json
+++ b/composer.json
@@ -1,9 +1,10 @@
 {
     "require": {
         "vlucas/phpdotenv": "^5.5",
-        "phpoffice/phpspreadsheet": "^1.25",
+        "phpoffice/phpspreadsheet": "3.9.0.0",
         "seinopsys/postgresql-database-class": "^3.1",
         "justinrainbow/json-schema": "^5.2",
-        "econea/nusoap": "^0.9.15"
+        "econea/nusoap": "^0.9.15",
+      "ext-pdo": "*"
     }
 }