diff --git a/package.json b/package.json
index 28826a0..c31574c 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
   "license": "MIT",
   "dependencies": {
     "@koa/cors": "^5.0.0",
-    "cron": "^1.8.2",
+    "cron": "^3.1.7",
     "headless-rechain": "git+https://uri",
     "koa": "^2.7.0",
     "koa-bodyparser": "^4.2.1",