diff --git a/package.json b/package.json
index dfcaaa1..802d86f 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "@babel/cli": "^7.8.4",
     "@babel/core": "^7.9.0",
     "@babel/plugin-proposal-optional-chaining": "^7.9.0",
-    "@babel/preset-env": "^7.5.0",
+    "@babel/preset-env": "^7.9.0",
     "babel-plugin-add-module-exports": "^1.0.2",
     "chai": "^4.2.0",
     "coveralls": "^3.0.4",