diff --git a/package.json b/package.json
index 53aa2d5b0..c8a5a1bbe 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "json-loader": "^0.5.4",
     "loader-runner": "^2.2.0",
     "loader-utils": "^0.2.16",
-    "memory-fs": "~0.3.0",
+    "memory-fs": "~0.4.1",
     "mkdirp": "~0.5.0",
     "node-libs-browser": "^2.0.0",
     "source-map": "^0.5.3",