diff --git a/php/composer.lock b/php/composer.lock
index f01134fc..07803d7c 100644
--- a/php/composer.lock
+++ b/php/composer.lock
@@ -217,16 +217,16 @@
         },
         {
             "name": "guzzlehttp/psr7",
-            "version": "2.5.0",
+            "version": "2.6.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/psr7.git",
-                "reference": "b635f279edd83fc275f822a1188157ffea568ff6"
+                "reference": "8bd7c33a0734ae1c5d074360512beb716bef3f77"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/psr7/zipball/b635f279edd83fc275f822a1188157ffea568ff6",
-                "reference": "b635f279edd83fc275f822a1188157ffea568ff6",
+                "url": "https://api.github.com/repos/guzzle/psr7/zipball/8bd7c33a0734ae1c5d074360512beb716bef3f77",
+                "reference": "8bd7c33a0734ae1c5d074360512beb716bef3f77",
                 "shasum": ""
             },
             "require": {
@@ -313,7 +313,7 @@
             ],
             "support": {
                 "issues": "https://github.com/guzzle/psr7/issues",
-                "source": "https://github.com/guzzle/psr7/tree/2.5.0"
+                "source": "https://github.com/guzzle/psr7/tree/2.6.0"
             },
             "funding": [
                 {
@@ -329,7 +329,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2023-04-17T16:11:26+00:00"
+            "time": "2023-08-03T15:06:02+00:00"
         },
         {
             "name": "http-interop/http-factory-guzzle",