diff --git a/dev221x/Mod4Lab_NodeNpmExpress/package-lock.json b/dev221x/Mod4Lab_NodeNpmExpress/package-lock.json
index 06de3fc..49aa9a8 100644
--- a/dev221x/Mod4Lab_NodeNpmExpress/package-lock.json
+++ b/dev221x/Mod4Lab_NodeNpmExpress/package-lock.json
@@ -45,9 +45,9 @@
       }
     },
     "bootstrap": {
-      "version": "3.3.7",
-      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-3.3.7.tgz",
-      "integrity": "sha1-WjiTlFSfIzMIdaOxUGVldPip63E=",
+      "version": "3.4.1",
+      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-3.4.1.tgz",
+      "integrity": "sha512-yN5oZVmRCwe5aKwzRj6736nSmKDX7pLYwsXiCj/EYmo16hODaBiT4En5btW/jhBF/seV+XMx3aYwukYC3A49DA==",
       "dev": true
     },
     "bytes": {
diff --git a/dev221x/Mod4Lab_NodeNpmExpress/package.json b/dev221x/Mod4Lab_NodeNpmExpress/package.json
index 9716c10..cce1f6d 100644
--- a/dev221x/Mod4Lab_NodeNpmExpress/package.json
+++ b/dev221x/Mod4Lab_NodeNpmExpress/package.json
@@ -10,7 +10,7 @@
   "license": "ISC",
   "devDependencies": {
     "angular": "^1.8.0",
-    "bootstrap": "^3.3.7",
+    "bootstrap": "^3.4.1",
     "express": "^4.14.0",
     "jquery": "^3.5.0"
   }