diff --git a/functions/ocr/app/package.json b/functions/ocr/app/package.json
index f90b6ccec1..86e8757687 100644
--- a/functions/ocr/app/package.json
+++ b/functions/ocr/app/package.json
@@ -15,7 +15,7 @@
     "test": "mocha test/*.test.js --timeout=20000"
   },
   "dependencies": {
-    "@google-cloud/pubsub": "^2.1.0",
+    "@google-cloud/pubsub": "^3.0.0",
     "@google-cloud/storage": "^5.1.1",
     "@google-cloud/translate": "^6.0.0",
     "@google-cloud/vision": "^2.1.0",