diff --git a/composer.lock b/composer.lock
index cd41f66..793356f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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     ],
-    "content-hash": "a75315965bcc27556c1a315e9c153fdd",
+    "content-hash": "0c59fcee5435c05d0503178a672079dd",
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@@ -494,16 +494,16 @@
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-            "version": "v3.10.0",
+            "version": "v3.12.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/protocolbuffers/protobuf-php.git",
-                "reference": "5dffdd2c84112e6c91fd84f92e3df96649426881"
+                "reference": "e8316b6aaf62a4dc506b8f88a88e506280c8538d"
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             "dist": {
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-                "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/5dffdd2c84112e6c91fd84f92e3df96649426881",
-                "reference": "5dffdd2c84112e6c91fd84f92e3df96649426881",
+                "url": "https://api.github.com/repos/protocolbuffers/protobuf-php/zipball/e8316b6aaf62a4dc506b8f88a88e506280c8538d",
+                "reference": "e8316b6aaf62a4dc506b8f88a88e506280c8538d",
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@@ -531,7 +531,7 @@
             "keywords": [
                 "proto"
             ],
-            "time": "2019-10-03T20:08:37+00:00"
+            "time": "2020-07-28T18:31:07+00:00"
         },
         {
             "name": "grpc/grpc",
@@ -3086,5 +3086,6 @@
         "ext-json": "*",
         "ext-grpc": "*"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "1.1.0"
 }