diff --git a/user-auth/graphtutorial/composer.lock b/user-auth/graphtutorial/composer.lock
index bacc19c..00f9619 100644
--- a/user-auth/graphtutorial/composer.lock
+++ b/user-auth/graphtutorial/composer.lock
@@ -2879,16 +2879,16 @@
         },
         {
             "name": "vlucas/phpdotenv",
-            "version": "v5.6.3",
+            "version": "v5.6.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/vlucas/phpdotenv.git",
-                "reference": "955e7815d677a3eaa7075231212f2110983adecc"
+                "reference": "416df702837983f8d5ff48c9c3fee4f5f57b980b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/vlucas/phpdotenv/zipball/955e7815d677a3eaa7075231212f2110983adecc",
-                "reference": "955e7815d677a3eaa7075231212f2110983adecc",
+                "url": "https://api.github.com/repos/vlucas/phpdotenv/zipball/416df702837983f8d5ff48c9c3fee4f5f57b980b",
+                "reference": "416df702837983f8d5ff48c9c3fee4f5f57b980b",
                 "shasum": ""
             },
             "require": {
@@ -2947,7 +2947,7 @@
             ],
             "support": {
                 "issues": "https://github.com/vlucas/phpdotenv/issues",
-                "source": "https://github.com/vlucas/phpdotenv/tree/v5.6.3"
+                "source": "https://github.com/vlucas/phpdotenv/tree/v5.6.4"
             },
             "funding": [
                 {
@@ -2959,7 +2959,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-12-27T19:49:13+00:00"
+            "time": "2026-07-06T19:11:50+00:00"
         }
     ],
     "packages-dev": [