diff --git a/packages/bigquery/package.json b/packages/bigquery/package.json
index 3054063459b..2792f0d9d7a 100644
--- a/packages/bigquery/package.json
+++ b/packages/bigquery/package.json
@@ -52,7 +52,7 @@
   "dependencies": {
     "@google-cloud/common": "^0.13.0",
     "arrify": "^1.0.0",
-    "duplexify": "^3.2.0",
+    "duplexify": "^3.5.0",
     "extend": "^3.0.0",
     "is": "^3.0.1",
     "stream-events": "^1.0.1",
diff --git a/packages/storage/package.json b/packages/storage/package.json
index f3bdc012b28..e14bac77c77 100644
--- a/packages/storage/package.json
+++ b/packages/storage/package.json
@@ -55,7 +55,7 @@
     "async": "^2.0.1",
     "concat-stream": "^1.5.0",
     "create-error-class": "^3.0.2",
-    "duplexify": "^3.2.0",
+    "duplexify": "^3.5.0",
     "extend": "^3.0.0",
     "gcs-resumable-upload": "^0.7.1",
     "hash-stream-validation": "^0.2.1",