diff --git a/composer.json b/composer.json
index a596879..f1e477a 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
   ],
   "require": {
     "php": "^5.6 || ^7.0 || ^8.0",
-    "phpseclib/phpseclib": "^2.0 !=2.0.8"
+    "phpseclib/phpseclib": "^2.0.31"
   },
   "require-dev": {
     "phpunit/phpunit": "^9.0"