diff --git a/package.json b/package.json
index 0f8787e..d8cf111 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
         "codecov": "^2.3.0",
         "coveralls": "^2.11.14",
         "doctoc": "^1.0.0",
-        "fs-extra": "^4.0.1",
+        "fs-extra": "^6.0.1",
         "istanbul": "^0.4.5",
         "jsdoc-parse": "^3.0.0",
         "jsdoc-to-markdown": "^3.0.0",