diff --git a/popup/package.json b/popup/package.json
index 3e2ab4e..8946f7c 100644
--- a/popup/package.json
+++ b/popup/package.json
@@ -13,7 +13,7 @@
   "dependencies": {
     "axios": "^0.18.1",
     "body-parser": "^1.16.1",
-    "bootstrap": "^3.3.7",
+    "bootstrap": "^4.0.0",
     "express": "^4.14.1",
     "morgan": "^1.8.1",
     "pg": "^6.1.2",