diff --git a/package.json b/package.json
index 397d4ee5..36235f0f 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
   "dependencies": {
     "@monaco-editor/react": "^2.3.0",
     "@novnc/novnc": "^1.1.0",
+    "actioncable": "^5.2.4-3",
     "antd": "^3.26.15",
     "array-flatten": "^2.1.2",
     "autoprefixer": "7.1.6",