diff --git a/examples/gui/data/index.htm b/examples/gui/data/index.htm
index bf90070..eccc1f3 100644
--- a/examples/gui/data/index.htm
+++ b/examples/gui/data/index.htm
@@ -10,7 +10,7 @@
   <link rel="stylesheet" href="/css/normalize.css">
   <link rel="stylesheet" href="/css/style.css">
 
-  <script src="/js/zepto.js"></script>
+  <script src="/js/zepto.min.js"></script>
   <script src="/js/slider.js"></script>
   <script src="/js/controls.js"></script>
 </head>
diff --git a/src/uploadDataIndex.h b/src/uploadDataIndex.h
index f7b0319..c93a596 100644
--- a/src/uploadDataIndex.h
+++ b/src/uploadDataIndex.h
@@ -10,7 +10,7 @@ const char HTML_INDEX[] PROGMEM = R"=====(
     <link rel="stylesheet" href="/css/normalize.css">
     <link rel="stylesheet" href="/css/style.css">
 
-    <script src="/js/zepto.js"></script>
+    <script src="/js/zepto.min.js"></script>
     <script src="/js/slider.js"></script>
     <script src="/js/controls.js"></script>
   </head>