diff --git a/composer.json b/composer.json
index 9b1b8711..629a9cb6 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
   },
   "require": {
     "roave/security-advisories": "dev-master",
-    "php": "~7.0 || ~7.1 || ~7.2",
+    "php": "~7.0 || ~7.1 || ~7.2 || ~7.3",
     "defuse/php-encryption": "^2.1",
     "phpmailer/phpmailer": "^6.0",
     "ademarre/binary-to-text-php": "dev-master",
@@ -47,13 +47,13 @@
     "fabpot/goutte": "~v3.2",
     "syspass/extension-installer-plugin": "dev-master",
     "syspass/plugin-authenticator": "^2.1-dev",
-    "ext-xdebug": "*",
     "nikic/php-parser": " ~v4.1"
   },
   "suggest": {
     "syspass/plugin-authenticator": "^2.1",
     "ext-ldap": "*",
-    "ext-curl": "*"
+    "ext-curl": "*",
+    "ext-xdebug": "*"
   },
   "autoload": {
     "psr-4": {
diff --git a/composer.lock b/composer.lock
index 961d8fbb..a64a7de0 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "08ae2387fa0e7b30cdd528fee1d2346d",
+    "content-hash": "91dab3bfbcce096704aa0735ad728ad5",
     "packages": [
         {
             "name": "ademarre/binary-to-text-php",
@@ -3964,7 +3964,7 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": "~7.0 || ~7.1 || ~7.2",
+        "php": "~7.0 || ~7.1 || ~7.2 || ~7.3",
         "ext-pdo": "*",
         "ext-dom": "*",
         "ext-gd": "*",
@@ -3975,7 +3975,5 @@
         "ext-libxml": "*",
         "ext-mbstring": "*"
     },
-    "platform-dev": {
-        "ext-xdebug": "*"
-    }
+    "platform-dev": []
 }