diff --git a/packages/lib/hash.js b/packages/lib/hash.js
index df26114e..12359602 100644
--- a/packages/lib/hash.js
+++ b/packages/lib/hash.js
@@ -4,7 +4,7 @@
  */
 "use strict";
 const crypto = require("crypto");
-const fs = require("fs");
+const fs = require("fs-extra");
 
 
 /**
diff --git a/packages/web_ui/webpack.common.js b/packages/web_ui/webpack.common.js
index 8b871783..628eb217 100644
--- a/packages/web_ui/webpack.common.js
+++ b/packages/web_ui/webpack.common.js
@@ -95,6 +95,8 @@ module.exports = (env = {}) => ({
 	resolve: {
 		extensions: [".js", ".json", ".jsx"],
 		fallback: {
+			"crypto": false,
+
 			// Required for winston
 			"util": require.resolve("util/"),
 			"os": require.resolve("os-browserify/browser"),