diff --git a/composer.json b/composer.json
index 47a313422d33..1f2d7d66a521 100644
--- a/composer.json
+++ b/composer.json
@@ -123,7 +123,7 @@
         "symfony/yaml": "4.4.25",
         "twig/extensions": "1.3.0",
         "twig/twig": "1.44.1",
-        "webmozart/assert": "1.5",
+        "webmozart/assert": "1.12.1",
         "aws/aws-sdk-php": "3.172"
     },
     "require-dev": {
diff --git a/composer.lock b/composer.lock
index 8432e4337fd1..2c46d9d5248e 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": "cae4c771c1299f4e0acdc24a13d57d36",
+    "content-hash": "5786a0f662c836da3d1ec4f69ec32d52",
     "packages": [
         {
             "name": "ass/xmlsecurity",
@@ -10518,29 +10518,33 @@
         },
         {
             "name": "webmozart/assert",
-            "version": "1.5.0",
+            "version": "1.12.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/webmozarts/assert.git",
-                "reference": "88e6d84706d09a236046d686bbea96f07b3a34f4"
+                "reference": "9be6926d8b485f55b9229203f962b51ed377ba68"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozarts/assert/zipball/88e6d84706d09a236046d686bbea96f07b3a34f4",
-                "reference": "88e6d84706d09a236046d686bbea96f07b3a34f4",
+                "url": "https://api.github.com/repos/webmozarts/assert/zipball/9be6926d8b485f55b9229203f962b51ed377ba68",
+                "reference": "9be6926d8b485f55b9229203f962b51ed377ba68",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.3.3 || ^7.0",
-                "symfony/polyfill-ctype": "^1.8"
+                "ext-ctype": "*",
+                "ext-date": "*",
+                "ext-filter": "*",
+                "php": "^7.2 || ^8.0"
             },
-            "require-dev": {
-                "phpunit/phpunit": "^4.8.36 || ^7.5.13"
+            "suggest": {
+                "ext-intl": "",
+                "ext-simplexml": "",
+                "ext-spl": ""
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.3-dev"
+                    "dev-master": "1.10-dev"
                 }
             },
             "autoload": {
@@ -10566,9 +10570,9 @@
             ],
             "support": {
                 "issues": "https://github.com/webmozarts/assert/issues",
-                "source": "https://github.com/webmozarts/assert/tree/1.5.0"
+                "source": "https://github.com/webmozarts/assert/tree/1.12.1"
             },
-            "time": "2019-08-24T08:43:50+00:00"
+            "time": "2025-10-29T15:56:20+00:00"
         },
         {
             "name": "willdurand/jsonp-callback-validator",
@@ -15737,7 +15741,7 @@
     ],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": [],
+    "stability-flags": {},
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
@@ -15756,6 +15760,6 @@
         "ext-zip": "*",
         "ext-openssl": "*"
     },
-    "platform-dev": [],
-    "plugin-api-version": "2.1.0"
+    "platform-dev": {},
+    "plugin-api-version": "2.6.0"
 }