diff --git a/composer.json b/composer.json
index b5ee3f6..ddea116 100644
--- a/composer.json
+++ b/composer.json
@@ -36,6 +36,6 @@
         "ext-curl": "*",
         "phpmailer/phpmailer": "6.10.0",
         "grpc/grpc": "1.57.0",
-        "google/protobuf": "4.31.0"
+        "google/protobuf": "4.31.1"
     }
 }
diff --git a/composer.lock b/composer.lock
index 27ee046..41431ab 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": "38702c0826822b7be797cc06eb9afbb7",
+    "content-hash": "fe7f6094a485b5d70a1e1eb1e7f7adc5",
     "packages": [
         {
             "name": "google/protobuf",
-            "version": "v4.31.0",
+            "version": "v4.31.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/protocolbuffers/protobuf-php.git",
-                "reference": "d59e31ce4bf0e4b48728e90c4d880839edb5be07"
+                "reference": "2b028ce8876254e2acbeceea7d9b573faad41864"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/d59e31ce4bf0e4b48728e90c4d880839edb5be07",
-                "reference": "d59e31ce4bf0e4b48728e90c4d880839edb5be07",
+                "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/2b028ce8876254e2acbeceea7d9b573faad41864",
+                "reference": "2b028ce8876254e2acbeceea7d9b573faad41864",
                 "shasum": ""
             },
             "require": {
@@ -46,9 +46,9 @@
                 "proto"
             ],
             "support": {
-                "source": "https://github.com/protocolbuffers/protobuf-php/tree/v4.31.0"
+                "source": "https://github.com/protocolbuffers/protobuf-php/tree/v4.31.1"
             },
-            "time": "2025-05-14T16:17:23+00:00"
+            "time": "2025-05-28T18:52:35+00:00"
         },
         {
             "name": "grpc/grpc",