diff --git a/composer.lock b/composer.lock
index be5e9eb5a..0a45713e8 100644
--- a/composer.lock
+++ b/composer.lock
@@ -824,16 +824,16 @@
         },
         {
             "name": "google/protobuf",
-            "version": "v5.36.0",
+            "version": "v5.36.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/protocolbuffers/protobuf-php.git",
-                "reference": "9c105104b54709ecd902494ab340ed2122789b2d"
+                "reference": "d64d16befba8632967f604b9644c0bb8f64cfbc3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/9c105104b54709ecd902494ab340ed2122789b2d",
-                "reference": "9c105104b54709ecd902494ab340ed2122789b2d",
+                "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/d64d16befba8632967f604b9644c0bb8f64cfbc3",
+                "reference": "d64d16befba8632967f604b9644c0bb8f64cfbc3",
                 "shasum": ""
             },
             "require": {
@@ -862,9 +862,9 @@
                 "proto"
             ],
             "support": {
-                "source": "https://github.com/protocolbuffers/protobuf-php/tree/v5.36.0"
+                "source": "https://github.com/protocolbuffers/protobuf-php/tree/v5.36.1"
             },
-            "time": "2026-08-20T13:06:50+00:00"
+            "time": "2026-08-31T22:07:31+00:00"
         },
         {
             "name": "guzzlehttp/guzzle",