diff --git a/cube-3d/index.html b/cube-3d/index.html
index ec8f3df..d21c91e 100644
--- a/cube-3d/index.html
+++ b/cube-3d/index.html
@@ -43,7 +43,7 @@
 </div>
 
     </div>
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
+    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
     <script src="js/experiment.js"></script>
 </body>
 </html>
diff --git a/cube-3d/touch.html b/cube-3d/touch.html
index b242714..01486f1 100644
--- a/cube-3d/touch.html
+++ b/cube-3d/touch.html
@@ -50,7 +50,7 @@ <h2><a href="https://paulrhayes.com/2009-07/animated-css3-cube-interface-using-3
 </article>
 
     </div>
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
+    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
     <script src="js/touch.js"></script>
 </body>
 </html>
diff --git a/media-query-transitions/index.html b/media-query-transitions/index.html
index 9988571..787ea6b 100644
--- a/media-query-transitions/index.html
+++ b/media-query-transitions/index.html
@@ -26,7 +26,7 @@ <h2>Media query rules as they are matched</h2>
 </section>
 
     </div>
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
+    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
     <script src="js/experiment.js"></script>
 </body>
 </html>
diff --git a/perspective/index.html b/perspective/index.html
index 52c8e90..0be6184 100644
--- a/perspective/index.html
+++ b/perspective/index.html
@@ -34,7 +34,7 @@
 </div>
 
     </div>
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
+    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
     <script src="js/experiment.js"></script>
 </body>
 </html>
diff --git a/sphere/index.html b/sphere/index.html
index 53e8d85..797f66f 100644
--- a/sphere/index.html
+++ b/sphere/index.html
@@ -60,7 +60,7 @@
 </form>
 
     </div>
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
+    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
     <script src="js/experiment.js"></script>
 </body>
 </html>
diff --git a/webcam/index.html b/webcam/index.html
index 2eac1f3..c0b9b80 100644
--- a/webcam/index.html
+++ b/webcam/index.html
@@ -28,7 +28,7 @@
 <script src="js/face.js"></script>
 
     </div>
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
+    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
     <script src="js/experiment.js"></script>
 </body>
 </html>
diff --git a/webcam/mask.html b/webcam/mask.html
index fb7e18d..731bad1 100644
--- a/webcam/mask.html
+++ b/webcam/mask.html
@@ -26,7 +26,7 @@
 <script src="js/face.js"></script>
 
     </div>
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
+    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
     <script src="js/experiment.js"></script>
 </body>
 </html>