diff --git a/composer.json b/composer.json
index 66c10045..9b38b04e 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,7 @@
     "require": {
         "php": "^5.6|^7.0",
         "guzzlehttp/guzzle": "^6.0",
-        "paragonie/random_compat": "^1|^2"
+        "paragonie/random_compat": "^1|^2|^9.99"
     },
     "require-dev": {
         "eloquent/liberator": "^2.0",