diff --git a/composer.json b/composer.json
index a6aa4682faec0829023fcf7f84e5f8fa45fd1233..c954f9b996aec2cf39c20c2d7b6a8eb8b4f64ed9 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
     "simplesamlphp/simplesamlphp": "^1.19",
     "simplesamlphp/saml2": "^4.2.5",
     "simplesamlphp/simplesamlphp-module-discopower": "^0.10",
-    "symfony/var-exporter": "^5.0",
+    "symfony/var-exporter": "^6.0",
     "phpseclib/phpseclib": "~3.0",
     "ext-curl": "*",
     "ext-filter": "*",