diff --git a/backend/composer.lock b/backend/composer.lock
index 96ecbb63d..07e2d3f03 100644
--- a/backend/composer.lock
+++ b/backend/composer.lock
@@ -2204,16 +2204,16 @@
         },
         {
             "name": "phpseclib/phpseclib",
-            "version": "3.0.48",
+            "version": "3.0.50",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpseclib/phpseclib.git",
-                "reference": "64065a5679c50acb886e82c07aa139b0f757bb89"
+                "reference": "aa6ad8321ed103dc3624fb600a25b66ebf78ec7b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpseclib/phpseclib/zipball/64065a5679c50acb886e82c07aa139b0f757bb89",
-                "reference": "64065a5679c50acb886e82c07aa139b0f757bb89",
+                "url": "https://api.github.com/repos/phpseclib/phpseclib/zipball/aa6ad8321ed103dc3624fb600a25b66ebf78ec7b",
+                "reference": "aa6ad8321ed103dc3624fb600a25b66ebf78ec7b",
                 "shasum": ""
             },
             "require": {
@@ -2294,7 +2294,7 @@
             ],
             "support": {
                 "issues": "https://github.com/phpseclib/phpseclib/issues",
-                "source": "https://github.com/phpseclib/phpseclib/tree/3.0.48"
+                "source": "https://github.com/phpseclib/phpseclib/tree/3.0.50"
             },
             "funding": [
                 {
@@ -2310,7 +2310,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-12-15T11:51:42+00:00"
+            "time": "2026-03-19T02:57:58+00:00"
         },
         {
             "name": "psr/container",
@@ -5756,5 +5756,5 @@
         "php": ">=8.2.0"
     },
     "platform-dev": {},
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.9.0"
 }