diff --git a/functions/package.json b/functions/package.json
index ebcbddf..469111e 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -16,7 +16,7 @@
     "cors": "^2.8.4",
     "express": "^4.16.3",
     "firebase-admin": "~6.1.0",
-    "firebase-functions": "^2.0.3",
+    "firebase-functions": "^3.4.0",
     "request": "^2.88.0",
     "request-promise": "^4.2.2"
   },