diff --git a/composer.json b/composer.json
index ae2f4a7..b815aff 100644
--- a/composer.json
+++ b/composer.json
@@ -36,6 +36,6 @@
         "ext-curl": "*",
         "phpmailer/phpmailer": "7.0.0",
         "grpc/grpc": "1.74.0",
-        "google/protobuf": "4.33.0"
+        "google/protobuf": "4.33.1"
     }
 }
diff --git a/composer.lock b/composer.lock
index c6583b7..2024ad6 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,20 +4,20 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "fef9f155ee999de5fcea2fffc49bac3c",
+    "content-hash": "cd14cff2f9d6e8e17463534a4d14e76d",
     "packages": [
         {
             "name": "google/protobuf",
-            "version": "v4.33.0",
+            "version": "v4.33.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/protocolbuffers/protobuf-php.git",
-                "reference": "b50269e23204e5ae859a326ec3d90f09efe3047d"
+                "reference": "0cd73ccf0cd26c3e72299cce1ea6144091a57e12"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/b50269e23204e5ae859a326ec3d90f09efe3047d",
-                "reference": "b50269e23204e5ae859a326ec3d90f09efe3047d",
+                "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/0cd73ccf0cd26c3e72299cce1ea6144091a57e12",
+                "reference": "0cd73ccf0cd26c3e72299cce1ea6144091a57e12",
                 "shasum": ""
             },
             "require": {
@@ -46,9 +46,9 @@
                 "proto"
             ],
             "support": {
-                "source": "https://github.com/protocolbuffers/protobuf-php/tree/v4.33.0"
+                "source": "https://github.com/protocolbuffers/protobuf-php/tree/v4.33.1"
             },
-            "time": "2025-10-15T20:10:28+00:00"
+            "time": "2025-11-12T21:58:05+00:00"
         },
         {
             "name": "grpc/grpc",