diff --git a/Chapter02/webpack-config-simple/package.json b/Chapter02/webpack-config-simple/package.json
index a6e8515..3eca5a1 100644
--- a/Chapter02/webpack-config-simple/package.json
+++ b/Chapter02/webpack-config-simple/package.json
@@ -26,7 +26,7 @@
     "webpack-dev-server": "^2.4.5"
   },
   "dependencies": {
-    "bootstrap": "^3.3.7",
+    "bootstrap": "^4.0.0",
     "jquery": "^3.2.1"
   }
 }