diff --git a/healthcare/dicom/package.json b/healthcare/dicom/package.json
index 4206ba1ac4..f4b03ea0f1 100644
--- a/healthcare/dicom/package.json
+++ b/healthcare/dicom/package.json
@@ -12,7 +12,7 @@
     "test": "mocha system-test/*.test.js --timeout=60000"
   },
   "devDependencies": {
-    "@google-cloud/pubsub": "^3.0.0",
+    "@google-cloud/pubsub": "^4.0.0",
     "@google-cloud/storage": "^6.0.0",
     "mocha": "^10.1.0"
   },