diff --git a/packages/felixinx/gtfs-realtime-protobuf-php/composer.lock b/packages/felixinx/gtfs-realtime-protobuf-php/composer.lock
index d002d5e..1ca6905 100644
--- a/packages/felixinx/gtfs-realtime-protobuf-php/composer.lock
+++ b/packages/felixinx/gtfs-realtime-protobuf-php/composer.lock
@@ -8,16 +8,16 @@
     "packages": [
         {
             "name": "google/protobuf",
-            "version": "v3.10.0",
+            "version": "v3.15.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/protocolbuffers/protobuf-php.git",
-                "reference": "5dffdd2c84112e6c91fd84f92e3df96649426881"
+                "reference": "758a0ef01c7bdf20d7ff31295d2af872547cc072"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/5dffdd2c84112e6c91fd84f92e3df96649426881",
-                "reference": "5dffdd2c84112e6c91fd84f92e3df96649426881",
+                "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/758a0ef01c7bdf20d7ff31295d2af872547cc072",
+                "reference": "758a0ef01c7bdf20d7ff31295d2af872547cc072",
                 "shasum": ""
             },
             "require": {
@@ -45,7 +45,11 @@
             "keywords": [
                 "proto"
             ],
-            "time": "2019-10-03T20:08:37+00:00"
+            "support": {
+                "issues": "https://github.com/protocolbuffers/protobuf-php/issues",
+                "source": "https://github.com/protocolbuffers/protobuf-php/tree/v3.15.0"
+            },
+            "time": "2021-02-18T22:06:03+00:00"
         },
         {
             "name": "protobuf-php/protobuf",
@@ -695,5 +699,6 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": [],
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.2.0"
 }