diff --git a/package.json b/package.json
index ed8ee28..ca7138e 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "@types/node": "^10.0.0",
     "conventional-changelog-cli": "^2.0.0",
     "jasmine": "^3.0.0",
-    "mock-fs": "^4.1.0",
+    "mock-fs": "^5.0.0",
     "rimraf": "^2.6.0",
     "tslint": "^5.0.0",
     "typescript": "^2.2.1"