diff --git a/composer.lock b/composer.lock
index cd41f66..8aec1e4 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "a75315965bcc27556c1a315e9c153fdd",
+    "content-hash": "60ccabfa4def967cedc93fac057f4c32",
     "packages": [
         {
             "name": "composer/ca-bundle",
@@ -535,16 +535,16 @@
         },
         {
             "name": "grpc/grpc",
-            "version": "1.22.0",
+            "version": "1.25.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/grpc/grpc-php.git",
-                "reference": "88235e786ef9b55fcb049f00c5c5202f8086a299"
+                "reference": "bdb165d6712db0cfcc35edae2d14fb2b00cabc88"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/grpc/grpc-php/zipball/88235e786ef9b55fcb049f00c5c5202f8086a299",
-                "reference": "88235e786ef9b55fcb049f00c5c5202f8086a299",
+                "url": "https://api.github.com/repos/grpc/grpc-php/zipball/bdb165d6712db0cfcc35edae2d14fb2b00cabc88",
+                "reference": "bdb165d6712db0cfcc35edae2d14fb2b00cabc88",
                 "shasum": ""
             },
             "require": {
@@ -572,7 +572,7 @@
             "keywords": [
                 "rpc"
             ],
-            "time": "2019-07-03T19:57:39+00:00"
+            "time": "2019-11-07T00:47:40+00:00"
         },
         {
             "name": "jms/metadata",