diff --git a/_layouts/default.html b/_layouts/default.html
index a45ebda3..79859dcc 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -146,7 +146,7 @@
         </div>
     </footer>
 
-    <script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
+    <script src="//ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
     <script>(window.jQuery || document.write('<script src="lib\/jquery\/jquery.min.js?v={{"now" | date: "%s"}}"><\/script>'));</script>
 
     <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
diff --git a/package-lock.json b/package-lock.json
index ddcc64a3..f3f5dadd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2254,9 +2254,9 @@
       "dev": true
     },
     "jquery": {
-      "version": "2.2.4",
-      "resolved": "https://registry.npmjs.org/jquery/-/jquery-2.2.4.tgz",
-      "integrity": "sha1-LInWiJterFIqfuoywUUhVZxsvwI=",
+      "version": "3.3.1",
+      "resolved": "https://registry.npmjs.org/jquery/-/jquery-3.3.1.tgz",
+      "integrity": "sha512-Ubldcmxp5np52/ENotGxlLe6aGMvmF4R8S6tZjsP6Knsaxd/xp3Zrh50cG93lR6nPXyUFwzN3ZSOQI0wRJNdGg==",
       "dev": true
     },
     "json-stable-stringify": {
diff --git a/package.json b/package.json
index 2b8d52b6..2089607f 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "font-awesome": "4.7.0",
     "gh-pages": "^1.2.0",
     "gulp": "^4.0.0",
-    "jquery": "2.2.4",
+    "jquery": "3.3.1",
     "lunr": "0.7.1",
     "merge-stream": "1.0.1",
     "del": "^3.0.0"