diff --git a/package.json b/package.json
index 118d2bb..f00a35e 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
   },
   "devDependencies": {
     "babel-plugin-istanbul": "^4.1.5",
-    "cross-env": "^5.0.1",
+    "cross-env": "^7.0.1",
     "esdoc": "^1.0.3",
     "esdoc-ecmascript-proposal-plugin": "^1.0.0",
     "esdoc-importpath-plugin": "^1.0.1",