diff --git a/composer.json b/composer.json
index f9f0ed1..7c5f6ec 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
     "require": {
         "php": ">=5.6",
         "opencensus/opencensus": "~0.5",
-        "google/cloud-trace": "~0.9"
+        "google/cloud-trace": "^1.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^5.0",