diff --git a/tests/integration/composer.json b/tests/integration/composer.json
index c0733ca3c..bd1af2a66 100644
--- a/tests/integration/composer.json
+++ b/tests/integration/composer.json
@@ -2,7 +2,7 @@
     "require-dev": {
         "phpunit/phpunit": "~13",
         "behat/behat": "~3.32.0",
-        "guzzlehttp/guzzle": "7.13.2",
+        "guzzlehttp/guzzle": "7.15.1",
         "jarnaiz/behat-junit-formatter": "^1.3",
         "sabre/dav": "4.7.1",
         "symfony/event-dispatcher": "~5.4"
diff --git a/tests/integration/composer.lock b/tests/integration/composer.lock
index 0da530284..9e7d4279d 100644
--- a/tests/integration/composer.lock
+++ b/tests/integration/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": "c3defbbf360fd05a70d9cee23a7335e6",
+    "content-hash": "264fab75c5c83e187fef1f471dc3d574",
     "packages": [],
     "packages-dev": [
         {
@@ -338,22 +338,22 @@
         },
         {
             "name": "guzzlehttp/guzzle",
-            "version": "7.13.2",
+            "version": "7.15.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "bcd989ad36c92d42a3715379af91f2defee5b8dd"
+                "reference": "61443dfb33c62f308ee8add20f45b4d6e4bf8d2f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/bcd989ad36c92d42a3715379af91f2defee5b8dd",
-                "reference": "bcd989ad36c92d42a3715379af91f2defee5b8dd",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/61443dfb33c62f308ee8add20f45b4d6e4bf8d2f",
+                "reference": "61443dfb33c62f308ee8add20f45b4d6e4bf8d2f",
                 "shasum": ""
             },
             "require": {
                 "ext-json": "*",
-                "guzzlehttp/promises": "^2.5",
-                "guzzlehttp/psr7": "^2.12.3",
+                "guzzlehttp/promises": "^2.5.1",
+                "guzzlehttp/psr7": "^2.13",
                 "php": "^7.2.5 || ^8.0",
                 "psr/http-client": "^1.0",
                 "symfony/deprecation-contracts": "^2.5 || ^3.0",
@@ -366,7 +366,7 @@
                 "bamarni/composer-bin-plugin": "^1.8.2",
                 "ext-curl": "*",
                 "guzzle/client-integration-tests": "3.0.3",
-                "guzzlehttp/test-server": "^0.6",
+                "guzzlehttp/test-server": "^0.7",
                 "php-http/message-factory": "^1.1",
                 "phpunit/phpunit": "^8.5.52 || ^9.6.34",
                 "psr/log": "^1.1 || ^2.0 || ^3.0"
@@ -446,7 +446,7 @@
             ],
             "support": {
                 "issues": "https://github.com/guzzle/guzzle/issues",
-                "source": "https://github.com/guzzle/guzzle/tree/7.13.2"
+                "source": "https://github.com/guzzle/guzzle/tree/7.15.1"
             },
             "funding": [
                 {
@@ -462,7 +462,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2026-07-05T19:00:11+00:00"
+            "time": "2026-07-18T11:23:11+00:00"
         },
         {
             "name": "guzzlehttp/promises",