diff --git a/package.json b/package.json
index fced206b..a82e3aca 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "@types/react-dom": "^16.0.2",
     "async": "^0.9.0",
     "bluebird": "~3.5.3",
-    "bootstrap": "^3.3.6",
+    "bootstrap": "^4.2.1",
     "core-js": "^2.5.1",
     "expect.js": "~0.3.1",
     "jquery": "^3.3.1",