diff --git a/composer.json b/composer.json
index 70954040eefa15fa604bb2e4c431e0b777abd6aa..3f7d7449dd858d81b505ae18ea7e3039f6385bc9 100644
--- a/composer.json
+++ b/composer.json
@@ -32,7 +32,7 @@
     ],
     "require": {
         "simplesamlphp/composer-module-installer": "~1.0",
-        "symfony/var-exporter": "^5.0",
+        "symfony/var-exporter": "^6.0",
         "phpseclib/phpseclib": "~3.0",
         "ext-curl": "*",
         "ext-json": "*",