diff --git a/package.json b/package.json
index 1ab8777..258463d 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   "author": "George Chung <Gerhut@GMail.com>",
   "license": "MIT",
   "devDependencies": {
-    "@babel/core": "^7.4.0",
+    "@babel/core": "^7.6.4",
     "babel-plugin-tester": "^7.0.0",
     "eslint": "^6.0.0",
     "eslint-config-standard": "^14.0.0",