diff --git a/composer.lock b/composer.lock
index f589333..339133c 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "1cc6b5e1774cc7e326142fd9d6ae677f",
+    "content-hash": "ac03e0696c6131139ecc9fc6ab17f533",
     "packages": [
         {
             "name": "jumbojett/openid-connect-php",
@@ -100,16 +100,16 @@
         },
         {
             "name": "phpseclib/phpseclib",
-            "version": "2.0.29",
+            "version": "2.0.31",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpseclib/phpseclib.git",
-                "reference": "497856a8d997f640b4a516062f84228a772a48a8"
+                "reference": "233a920cb38636a43b18d428f9a8db1f0a1a08f4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpseclib/phpseclib/zipball/497856a8d997f640b4a516062f84228a772a48a8",
-                "reference": "497856a8d997f640b4a516062f84228a772a48a8",
+                "url": "https://api.github.com/repos/phpseclib/phpseclib/zipball/233a920cb38636a43b18d428f9a8db1f0a1a08f4",
+                "reference": "233a920cb38636a43b18d428f9a8db1f0a1a08f4",
                 "shasum": ""
             },
             "require": {
@@ -117,7 +117,7 @@
             },
             "require-dev": {
                 "phing/phing": "~2.7",
-                "phpunit/phpunit": "^4.8.35|^5.7|^6.0",
+                "phpunit/phpunit": "^4.8.35|^5.7|^6.0|^9.4",
                 "squizlabs/php_codesniffer": "~2.0"
             },
             "suggest": {
@@ -189,7 +189,7 @@
             ],
             "support": {
                 "issues": "https://github.com/phpseclib/phpseclib/issues",
-                "source": "https://github.com/phpseclib/phpseclib/tree/2.0"
+                "source": "https://github.com/phpseclib/phpseclib/tree/2.0.31"
             },
             "funding": [
                 {
@@ -205,7 +205,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2020-09-08T04:24:43+00:00"
+            "time": "2021-04-06T13:56:45+00:00"
         },
         {
             "name": "roundcube/plugin-installer",