diff --git a/package.json b/package.json
index fcb089e..242350d 100644
--- a/package.json
+++ b/package.json
@@ -79,7 +79,7 @@
     "cjson": "^0.5.0",
     "deep-store": "1.1.0",
     "error-stack-parser": "^2.0.1",
-    "fs-extra": "^8.1.0",
+    "fs-extra": "^9.0.0",
     "istanbul-lib-instrument": "^3.0.0",
     "jsdom": "^15.1.1",
     "jsonbird": ">= 3.1.0 < 4",