diff --git a/package.json b/package.json
index b88acbd..8247052 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,9 @@
   },
   "dependencies": {},
   "devDependencies": {
-    "mjml": "^4.7.1"
+    "mjml": "^4.7.1",
+    "node-fetch": ">=2.6.1",
+    "ini": ">=1.3.6"
   },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"