diff --git a/package.json b/package.json
index 906c815..0f52ae6 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "graphql": "14.0.2",
     "graphql-subscriptions": "1.0.0",
     "graphql-tools": "4.0.3",
-    "memory-fs": "0.4.1",
+    "memory-fs": "0.5.0",
     "midori": "3.3.0",
     "mime-types": "2.1.21",
     "openport": "0.0.5",