diff --git a/composer.json b/composer.json
index fc697823f244..48082a55d256 100644
--- a/composer.json
+++ b/composer.json
@@ -42,7 +42,7 @@
     "require": {
         "php": ">=5.5",
         "rize/uri-template": "~0.3",
-        "google/auth": "^0.11",
+        "google/auth": "^1.0",
         "guzzlehttp/guzzle": "^5.3|^6.0",
         "guzzlehttp/psr7": "^1.2",
         "monolog/monolog": "~1",
@@ -58,7 +58,7 @@
         "erusev/parsedown": "^1.6",
         "vierbergenlars/php-semver": "^3.0",
         "google/proto-client-php": "^0.13",
-        "google/gax": "^0.9",
+        "google/gax": "^0.10",
         "symfony/lock": "3.3.x-dev#1ba6ac9"
     },
     "suggest": {
diff --git a/src/Core/composer.json b/src/Core/composer.json
index d7b094add539..d05ecb4f0908 100644
--- a/src/Core/composer.json
+++ b/src/Core/composer.json
@@ -6,7 +6,7 @@
     "require": {
         "php": ">=5.5",
         "rize/uri-template": "~0.3",
-        "google/auth": "^0.11",
+        "google/auth": "^1.0",
         "guzzlehttp/guzzle": "^5.3|^6.0",
         "guzzlehttp/psr7": "^1.2",
         "monolog/monolog": "~1",
diff --git a/src/ErrorReporting/composer.json b/src/ErrorReporting/composer.json
index 96a2fdb0fcce..d8ad6f6255f6 100644
--- a/src/ErrorReporting/composer.json
+++ b/src/ErrorReporting/composer.json
@@ -6,7 +6,7 @@
     "require": {
         "ext-grpc": "*",
         "google/proto-client-php": "^0.13",
-        "google/gax": "^0.9"
+        "google/gax": "^0.10"
     },
     "extra": {
         "component": {
diff --git a/src/Monitoring/composer.json b/src/Monitoring/composer.json
index 1343c2173513..e0694f2e52dd 100644
--- a/src/Monitoring/composer.json
+++ b/src/Monitoring/composer.json
@@ -6,7 +6,7 @@
     "require": {
         "ext-grpc": "*",
         "google/proto-client-php": "^0.13",
-        "google/gax": "^0.9"
+        "google/gax": "^0.10"
     },
     "extra": {
         "component": {
diff --git a/src/Spanner/composer.json b/src/Spanner/composer.json
index b9ff6d27761c..6ed869dcfb88 100644
--- a/src/Spanner/composer.json
+++ b/src/Spanner/composer.json
@@ -6,7 +6,7 @@
     "require": {
         "ext-grpc": "*",
         "google/cloud-core": "^1.4",
-        "google/gax": "^0.9",
+        "google/gax": "^0.10",
         "google/proto-client-php": "^0.13"
     },
     "suggest": {
diff --git a/src/VideoIntelligence/composer.json b/src/VideoIntelligence/composer.json
index b2730781b126..e4c329818d4a 100644
--- a/src/VideoIntelligence/composer.json
+++ b/src/VideoIntelligence/composer.json
@@ -6,7 +6,7 @@
     "require": {
         "ext-grpc": "*",
         "google/proto-client-php": "^0.13",
-        "google/gax": "^0.9"
+        "google/gax": "^0.10"
     },
     "extra": {
         "component": {