diff --git a/composer.json b/composer.json
index cc1f9f2..a5df9e7 100644
--- a/composer.json
+++ b/composer.json
@@ -49,7 +49,7 @@
     "psy/psysh": "^0.11",
     "roave/security-advisories": "dev-latest",
     "squizlabs/php_codesniffer": "^3.6",
-    "vimeo/psalm": "^4.8"
+    "vimeo/psalm": "^4.8 || ^5.0"
   },
   "suggest": {
     "phpoffice/phpspreadsheet": "Convert CNAB files to spreadsheets"