diff --git a/gulliver/methods/errors/error403.php b/gulliver/methods/errors/error403.php
index 399492218..114ca23a4 100644
--- a/gulliver/methods/errors/error403.php
+++ b/gulliver/methods/errors/error403.php
@@ -52,7 +52,7 @@ if (isset($_GET["url"]) && $_GET["url"] != "") {
     <link href="../lib/pmdynaform/libs/font-awesome-4.6.3/css/font-awesome.min.css" rel="stylesheet">
     <!-- Custom styling plus plugins -->
     <link href="../lib/pmdynaform/libs/custom/custom.css" rel="stylesheet">
-    <script type="text/javascript" src="../lib/pmdynaform/libs/jquery/jquery-3.6.0.js"></script>
+    <script type="text/javascript" src="../lib/pmdynaform/libs/jquery/jquery-1.11.js"></script>
     <script type="text/javascript">
         jQuery(document).ready(function($) {
             var btnLogin = $("#login"),
diff --git a/workflow/engine/classes/PmDynaform.php b/workflow/engine/classes/PmDynaform.php
index 4de236a43..07789d721 100644
--- a/workflow/engine/classes/PmDynaform.php
+++ b/workflow/engine/classes/PmDynaform.php
@@ -1224,7 +1224,7 @@ class PmDynaform
                 var pathRTLCss = \"" . $this->pathRTLCss . "\";
                 var delIndex = " . (isset($this->fields["DEL_INDEX"]) ? $this->fields["DEL_INDEX"] : "0") . ";
                 " . $this->getTheStringVariableForGoogleMaps() . "\n
-                $(window).on('load',(function ()
+                $(window).load(function ()
                 {
                     var data = jsondata;
 
@@ -1288,7 +1288,7 @@ class PmDynaform
                 "var delIndex = " . (isset($this->fields["DEL_INDEX"]) ? $this->fields["DEL_INDEX"] : "0") . ";\n" .
                 "var leaveCaseWarning = " . $this->getLeaveCaseWarning() . ";\n" .
                 $this->getTheStringVariableForGoogleMaps() . "\n" .
-                "$(window).on('load',(function () {\n" .
+                "$(window).load(function () {\n" .
                 "    var data = jsondata;\n" .
                 "    window.dynaform = new PMDynaform.core.Project({\n" .
                 "        data: data,\n" .
diff --git a/workflow/engine/js/cases/core/pmDynaform.js b/workflow/engine/js/cases/core/pmDynaform.js
index 7f20db2b3..6fc55a959 100644
--- a/workflow/engine/js/cases/core/pmDynaform.js
+++ b/workflow/engine/js/cases/core/pmDynaform.js
@@ -16,7 +16,7 @@ function submitNextStep(formStep) {
     $("#" + formStep.id).submitForm();
     return this;
 }
-$(window).on("load", function () {
+$(window).load(function () {
     var delIndexDefault = "0",
         dyn_uid = window.dyn_uid || null;
     if (pm_run_outside_main_app === 'true') {
diff --git a/workflow/engine/templates/cases/pmdynaform.html b/workflow/engine/templates/cases/pmdynaform.html
index 816f25b0a..03f7151c5 100644
--- a/workflow/engine/templates/cases/pmdynaform.html
+++ b/workflow/engine/templates/cases/pmdynaform.html
@@ -17,7 +17,7 @@
 
         <script type="text/javascript" src="/translations/translationsMafe.js"></script>
         <script type="text/javascript" src="/lib/pmdynaform/libs/moment/moment.min.js"></script>
-        <script type="text/javascript" src="/lib/pmdynaform/libs/jquery/jquery-3.6.0.js"></script>
+        <script type="text/javascript" src="/lib/pmdynaform/libs/jquery/jquery-1.11.js"></script>
         <script type="text/javascript" src="/lib/pmdynaform/libs/select2/select2.min.js"></script>
         <script type="text/javascript" src="/lib/pmdynaform/libs/bootstrap-3.1.1/js/bootstrap.min.js"></script>
         <script type="text/javascript" src="/lib/pmdynaform/libs/datepicker/bootstrap-datetimepicker.js"></script>