diff --git a/functions/package-lock.json b/functions/package-lock.json
index 4912775..ec6f173 100644
--- a/functions/package-lock.json
+++ b/functions/package-lock.json
@@ -305,12 +305,12 @@
       "integrity": "sha512-qOMnAh1JY9NkYUEy3iFviiFq0dCvk6qN2DsRy2Y7eAhHR6RqwA47l1kI+0MIXmSzlJ9akXjWAXxV5ijzr68Big=="
     },
     "@firebase/util": {
-      "version": "0.2.45",
-      "resolved": "https://registry.npmjs.org/@firebase/util/-/util-0.2.45.tgz",
-      "integrity": "sha512-k3IqXaIgwlPg7m5lXmMUtkqA/p+LMFkFQIqBuDtdT0iyWB6kQDokyjw2Sgd3GoTybs6tWqUKFZupZpV6r73UHw==",
+      "version": "0.3.4",
+      "resolved": "https://registry.npmjs.org/@firebase/util/-/util-0.3.4.tgz",
+      "integrity": "sha512-VwjJUE2Vgr2UMfH63ZtIX9Hd7x+6gayi6RUXaTqEYxSbf/JmehLmAEYSuxS/NckfzAXWeGnKclvnXVibDgpjQQ==",
       "dev": true,
       "requires": {
-        "tslib": "1.11.1"
+        "tslib": "^1.11.1"
       }
     },
     "@google-cloud/common": {
diff --git a/functions/package.json b/functions/package.json
index 01f6544..ac678ef 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -19,7 +19,7 @@
     "firebase-functions": "^3.6.1"
   },
   "devDependencies": {
-    "@firebase/util": "^0.2.45",
+    "@firebase/util": "^0.3.4",
     "@google-cloud/firestore": "^3.8.0",
     "babel-eslint": "^10.1.0",
     "eslint": "^5.12.0",