diff --git a/package.json b/package.json
index a785207..0f9422b 100644
--- a/package.json
+++ b/package.json
@@ -32,8 +32,10 @@
         ]
     },
     "devDependencies": {
+        "@types/express": "^4.17.6",
         "@types/jest": "^24.0.18",
         "@types/node": "^10.10.1",
+        "@types/request-promise-native": "^1.0.17",
         "gulp": "^4.0.0",
         "jest": "^24.9.0",
         "n8n-workflow": "^0.11.0",