diff --git a/packages/core/package.json b/packages/core/package.json
index 73e97f2484..86be38230b 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -25,6 +25,7 @@
         "dist"
     ],
     "devDependencies": {
+        "@types/cron": "^1.7.1",
         "@types/crypto-js": "^3.1.43",
         "@types/express": "^4.16.1",
         "@types/jest": "^24.0.18",
@@ -40,7 +41,7 @@
     },
     "dependencies": {
         "cron": "^1.7.2",
-        "crypto-js": "^3.1.9-1",
+        "crypto-js": "3.1.9-1",
         "lodash.get": "^4.4.2",
         "mmmagic": "^0.5.2",
         "n8n-workflow": "~0.22.0",