diff --git a/composer.json b/composer.json
index c64bc8ab..b0cd4721 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
         "doctrine/annotations": "^1.10",
         "doctrine/cache": "^2.1",
         "gabordemooij/redbean": "^5.7",
-        "google/protobuf": "^3.18",
+        "google/protobuf": "^3.19",
         "grpc/grpc": "^1.39",
         "laminas/laminas-config": "^3.7",
         "laminas/laminas-config-aggregator": "^1.6",
diff --git a/composer.lock b/composer.lock
index 4dbd00c9..153426bc 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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         "This file is @generated automatically"
     ],
-    "content-hash": "ba2666b371d9473ebf4a7576eb37bfd4",
+    "content-hash": "5a732e9cb05493e81f6662511d4b4e27",
     "packages": [],
     "packages-dev": [
         {
@@ -1244,16 +1244,16 @@
         },
         {
             "name": "google/protobuf",
-            "version": "v3.18.1",
+            "version": "v3.19.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/protocolbuffers/protobuf-php.git",
-                "reference": "b6a544ef62dfbeb6d291a9055947d28689ea4f38"
+                "reference": "6b7714c5ccf14f60cca5aca12ef62a6832dc3d98"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/b6a544ef62dfbeb6d291a9055947d28689ea4f38",
-                "reference": "b6a544ef62dfbeb6d291a9055947d28689ea4f38",
+                "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/6b7714c5ccf14f60cca5aca12ef62a6832dc3d98",
+                "reference": "6b7714c5ccf14f60cca5aca12ef62a6832dc3d98",
                 "shasum": ""
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             "require": {
@@ -1283,9 +1283,9 @@
             ],
             "support": {
                 "issues": "https://github.com/protocolbuffers/protobuf-php/issues",
-                "source": "https://github.com/protocolbuffers/protobuf-php/tree/v3.18.1"
+                "source": "https://github.com/protocolbuffers/protobuf-php/tree/v3.19.0"
             },
-            "time": "2021-10-05T20:17:50+00:00"
+            "time": "2021-10-20T21:25:22+00:00"
         },
         {
             "name": "graham-campbell/result-type",