diff --git a/functions/package.json b/functions/package.json
index 25a35b2..8876a47 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -4,7 +4,7 @@
   "dependencies": {
     "@google-cloud/debug-agent": "^1.0.0",
     "@google-cloud/storage": "^0.7.0",
-    "firebase-functions": "^0.5",
+    "firebase-functions": "^3.6.2",
     "mkdirp-promise": "^5.0.1",
     "sharp": "^0.17.2"
   },