diff --git a/lab-2/website/index.html b/lab-2/website/index.html
index 98f71ac..da58c72 100755
--- a/lab-2/website/index.html
+++ b/lab-2/website/index.html
@@ -73,8 +73,8 @@ <h1>All videos. All the time.</h1>
         </div>
     </div>
 
-    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
-    <script>window.jQuery || document.write('<script src="js/vendor/jquery-1.11.2.min.js"><\/script>')</script>
+    <script src="//ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
+    <script>window.jQuery || document.write('<script src="js/vendor/jquery-3.4.1.min.js"><\/script>')</script>
 
     <script src="js/vendor/bootstrap.min.js"></script>
     <script src="https://cdn.auth0.com/js/lock/11.16.0/lock.min.js"></script>
diff --git a/lab-3/website/index.html b/lab-3/website/index.html
index e9514b2..2483054 100755
--- a/lab-3/website/index.html
+++ b/lab-3/website/index.html
@@ -98,8 +98,8 @@ <h4 class="modal-title">User Profile Information (from Auth0 via Lambda)</h4>
     <!-- /.modal -->
     <!-- User profile modal -->
 
-    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
-    <script>window.jQuery || document.write('<script src="js/vendor/jquery-1.11.2.min.js"><\/script>')</script>
+    <script src="//ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
+    <script>window.jQuery || document.write('<script src="js/vendor/jquery-3.4.1.min.js"><\/script>')</script>
 
     <script src="js/vendor/bootstrap.min.js"></script>
     <script src="https://cdn.auth0.com/js/lock/11.16.0/lock.min.js"></script>
diff --git a/lab-4/website/index.html b/lab-4/website/index.html
index c65bda7..674f1c6 100755
--- a/lab-4/website/index.html
+++ b/lab-4/website/index.html
@@ -117,8 +117,8 @@ <h4 class="modal-title">User Profile Information (from Auth0 via Lambda)</h4>
     <!-- /.modal -->
     <!-- User profile modal -->
 
-    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
-    <script>window.jQuery || document.write('<script src="js/vendor/jquery-1.11.2.min.js"><\/script>')</script>
+    <script src="//ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
+    <script>window.jQuery || document.write('<script src="js/vendor/jquery-3.4.1.min.js"><\/script>')</script>
 
     <script src="js/vendor/bootstrap.min.js"></script>
     <script src="https://cdn.auth0.com/js/lock/11.16.0/lock.min.js"></script>
diff --git a/lab-5/website/index.html b/lab-5/website/index.html
index 873a7d8..f79c10a 100755
--- a/lab-5/website/index.html
+++ b/lab-5/website/index.html
@@ -140,8 +140,8 @@ <h4 class="modal-title">User Profile Information (from Auth0 via Lambda)</h4>
     <!-- /.modal -->
     <!-- User profile modal -->
 
-    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
-    <script>window.jQuery || document.write('<script src="js/vendor/jquery-1.11.2.min.js"><\/script>')</script>
+    <script src="//ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
+    <script>window.jQuery || document.write('<script src="js/vendor/jquery-3.4.1.min.js"><\/script>')</script>
 
     <script src="js/vendor/bootstrap.min.js"></script>
     <script src="https://cdn.auth0.com/js/lock/11.16.0/lock.min.js"></script>