diff --git a/package.json b/package.json
index 25243b3..9864fe3 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
   "homepage": "https://github.com/googleapis/teeny-request#readme",
   "dependencies": {
     "http-proxy-agent": "^4.0.0",
-    "https-proxy-agent": "^4.0.0",
+    "https-proxy-agent": "^5.0.0",
     "node-fetch": "^2.2.0",
     "stream-events": "^1.0.5",
     "uuid": "^3.3.2"