diff --git a/examples/echo/index.html b/examples/echo/index.html
index 41734548..4d739131 100644
--- a/examples/echo/index.html
+++ b/examples/echo/index.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <html><head>
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js"></script>
     <script src="http://cdn.jsdelivr.net/sockjs/1.0.1/sockjs.min.js"></script>
     <style>
       .box {
diff --git a/examples/express-3.x/index.html b/examples/express-3.x/index.html
index 050ce550..73c8e5e2 100644
--- a/examples/express-3.x/index.html
+++ b/examples/express-3.x/index.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <html><head>
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js"></script>
     <script src="http://cdn.jsdelivr.net/sockjs/1.0.1/sockjs.min.js"></script>
     <style>
       .box {
diff --git a/examples/express/index.html b/examples/express/index.html
index 050ce550..73c8e5e2 100644
--- a/examples/express/index.html
+++ b/examples/express/index.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <html><head>
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js"></script>
     <script src="http://cdn.jsdelivr.net/sockjs/1.0.1/sockjs.min.js"></script>
     <style>
       .box {
diff --git a/examples/hapi/html/index.html b/examples/hapi/html/index.html
index 41734548..4d739131 100644
--- a/examples/hapi/html/index.html
+++ b/examples/hapi/html/index.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <html><head>
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js"></script>
     <script src="http://cdn.jsdelivr.net/sockjs/1.0.1/sockjs.min.js"></script>
     <style>
       .box {
diff --git a/examples/koa/index.html b/examples/koa/index.html
index 2a3844d1..052c93ea 100644
--- a/examples/koa/index.html
+++ b/examples/koa/index.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <html><head>
-    <script src="//cdn.jsdelivr.net/jquery/2.1.4/jquery.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js"></script>
     <script src="//cdn.jsdelivr.net/sockjs/1.0.1/sockjs.min.js"></script>
     <style>
       .box {
diff --git a/examples/multiplex/index.html b/examples/multiplex/index.html
index 5d2eaca8..c505429c 100644
--- a/examples/multiplex/index.html
+++ b/examples/multiplex/index.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <html><head>
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js"></script>
     <script src="http://cdn.jsdelivr.net/sockjs/1.0.1/sockjs.min.js"></script>
     <script src="http://cdn.sockjs.org/websocket-multiplex-0.1.js"></script>
     <style>
