diff --git a/composer.json b/composer.json
index 31845d4..cf4f0ba 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,8 @@
     ],
     "require": {
         "ext-json": "*",
-        "phpseclib/phpseclib": "~2.0",
+        "phpseclib/phpseclib": "^3.0",
+        "google/auth": "^v1.29.1",
         "google/cloud-tasks": "^1.10",
         "thecodingmachine/safe": "^1.0|^2.0"
     },