diff --git a/composer.json b/composer.json
index 5df7d2504398a..23122cd223a94 100644
--- a/composer.json
+++ b/composer.json
@@ -62,7 +62,7 @@
     "joomla/di": "^3.0.1",
     "joomla/event": "^3.0.1",
     "joomla/filter": "^3.0.2",
-    "joomla/filesystem": "^3.1.0",
+    "joomla/filesystem": "^3.1.3",
     "joomla/http": "^3.1.0",
     "joomla/input": "~3.0",
     "joomla/language": "~3.0",
diff --git a/composer.lock b/composer.lock
index 37180572406cb..82aaa8c162d37 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": "a4cd629df8d9613b52b92788ce7af5a7",
+    "content-hash": "fb4d6cde1886d554211c2e47e0baa723",
     "packages": [
         {
             "name": "algo26-matthias/idna-convert",
@@ -1725,16 +1725,16 @@
         },
         {
             "name": "joomla/filesystem",
-            "version": "3.1.0",
+            "version": "3.1.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/joomla-framework/filesystem.git",
-                "reference": "4bcdf0b029db585c42169ddd5c4f3635c7cac04e"
+                "reference": "556e7400988705668bce4ef71abb7dd9213404ff"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/joomla-framework/filesystem/zipball/4bcdf0b029db585c42169ddd5c4f3635c7cac04e",
-                "reference": "4bcdf0b029db585c42169ddd5c4f3635c7cac04e",
+                "url": "https://api.github.com/repos/joomla-framework/filesystem/zipball/556e7400988705668bce4ef71abb7dd9213404ff",
+                "reference": "556e7400988705668bce4ef71abb7dd9213404ff",
                 "shasum": ""
             },
             "require": {
@@ -1743,9 +1743,8 @@
             "require-dev": {
                 "joomla/test": "^3.0",
                 "mikey179/vfsstream": "^1.6.11",
-                "phan/phan": "^5.4.2",
-                "phpstan/phpstan": "^2.0",
-                "phpstan/phpstan-deprecation-rules": "^2.0",
+                "phpstan/phpstan": "1.12.27",
+                "phpstan/phpstan-deprecation-rules": "1.2.1",
                 "phpunit/phpunit": "^9.5.28",
                 "squizlabs/php_codesniffer": "^3.7.2"
             },
@@ -1774,19 +1773,9 @@
             ],
             "support": {
                 "issues": "https://github.com/joomla-framework/filesystem/issues",
-                "source": "https://github.com/joomla-framework/filesystem/tree/3.1.0"
+                "source": "https://github.com/joomla-framework/filesystem/tree/3.1.3"
             },
-            "funding": [
-                {
-                    "url": "https://community.joomla.org/sponsorship-campaigns.html",
-                    "type": "custom"
-                },
-                {
-                    "url": "https://github.com/joomla",
-                    "type": "github"
-                }
-            ],
-            "time": "2025-03-07T09:56:32+00:00"
+            "time": "2025-08-14T17:48:52+00:00"
         },
         {
             "name": "joomla/filter",