diff --git a/composer.json b/composer.json
index d4a29be7..9380ae57 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
     "require": {
         "php": ">=5.3.0",
         "firebase/php-jwt": "~3.0",
-        "paragonie/random_compat": "~2.0"
+        "paragonie/random_compat": "~1.4|~2.0"
     },
     "require-dev": {
         "phpunit/phpunit": "4.5.*",