diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
new file mode 100644
index 0000000..2235a2e
--- /dev/null
+++ b/npm-shrinkwrap.json
@@ -0,0 +1,7 @@
+{
+    "dependencies": {
+        "graceful-fs": {
+            "version": "4.2.4"
+        }
+    }
+}