diff --git a/package.json b/package.json
index 4b4fdfde8..8f32b58fa 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,7 @@
     "node": "*"
   },
   "dependencies": {
+    "base64": "1.0.1",
     "cssom": "0.2.0",
     "html5": "0.2.7",
     "jsdom": "0.1.22"