diff --git a/Hands-on lab/lab-files/package-lock.json b/Hands-on lab/lab-files/package-lock.json
old mode 100755
new mode 100644
index 873357f..e474301
--- a/Hands-on lab/lab-files/package-lock.json	
+++ b/Hands-on lab/lab-files/package-lock.json	
@@ -2477,9 +2477,9 @@
       "integrity": "sha1-aN/1++YMUes3cl6p4+0xDcwed24="
     },
     "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=="
     },
     "brace-expansion": {
       "version": "1.1.11",
diff --git a/Hands-on lab/lab-files/package.json b/Hands-on lab/lab-files/package.json
index e4d94fe..e015738 100644
--- a/Hands-on lab/lab-files/package.json	
+++ b/Hands-on lab/lab-files/package.json	
@@ -8,7 +8,7 @@
     "bcryptjs": "^2.4.3",
     "bluebird": "^3.5.4",
     "body-parser": "^1.18.3",
-    "bootstrap": "^3.3.7",
+    "bootstrap": "^3.4.1",
     "connect-mongo": "^2.0.3",
     "express": "^4.16.4",
     "express-session": "^1.15.6",