diff --git a/UserPeoplePicker.js b/UserPeoplePicker.js
index d6bbf5b..be511c7 100644
--- a/UserPeoplePicker.js
+++ b/UserPeoplePicker.js
@@ -86,9 +86,13 @@
     function GetPeoplePickerUserID(userNameString) {
         var itemID = "";
         $.ajax({
-            url: _spPageContextInfo.webAbsoluteUrl + "/_api/web/ensureUser('" + encodeURIComponent(userNameString) + "')",
+            url: _spPageContextInfo.webAbsoluteUrl + "/_api/web/ensureuser",
             method: "POST",
             async: false,
+            contentType: "application/json;odata=verbose",
+            data: JSON.stringify({
+                logonName: userNameString
+            }),
             headers: {
                 "Accept": "application/json; odata=verbose",
                 "X-RequestDigest": $("#__REQUESTDIGEST").val()
diff --git a/UserPeoplePicker.min.js b/UserPeoplePicker.min.js
index a90e7f7..f59dc04 100644
--- a/UserPeoplePicker.min.js
+++ b/UserPeoplePicker.min.js
@@ -1 +1 @@
-!function(e){function t(e){var t=document.createElement("script");t.setAttribute("type","text/javascript"),t.setAttribute("src","/_layouts/15/"+e),document.getElementsByTagName("head")[0].appendChild(t)}function n(e){var t={};t.PrincipalAccountType="User,DL,SecGroup,SPGroup",t.SearchPrincipalSource=15,t.ResolvePrincipalSource=15,t.AllowMultipleValues=!0,t.MaximumEntitySuggestions=50,t.Width="280px",this.SPClientPeoplePicker_InitStandaloneControlWrapper(e,null,t)}function r(e){if(void 0!=e){var t=e+"_TopSpan",n=null,r=this.SPClientPeoplePicker.SPClientPeoplePickerDict;for(var i in r)if(i==t){n=r[i];break}return n}}function i(e){var t=r(e);if(null!=t){for(var n=t.GetAllUserInfo(),i=[],o=0;o<n.length;o++){var a=l(n[o].Key);i.push(a)}return i}return""}function o(e){var t=r(e);if(null!=t){for(var n=t.GetAllUserInfo(),i="",o=0;o<n.length;o++)i+=n[o].DisplayText+";#";return i}return""}function a(e,t){var n=r(e);null!=n&&t.forEach(function(e){var t=s(e);null!=t&&n.AddUserKeys(t.LoginName,!1)})}function l(t){var n="";return e.ajax({url:_spPageContextInfo.webAbsoluteUrl+"/_api/web/ensureUser('"+encodeURIComponent(t)+"')",method:"POST",async:!1,headers:{Accept:"application/json; odata=verbose","X-RequestDigest":e("#__REQUESTDIGEST").val()},success:function(e){n=e.d.Id},error:function(e){console.log(e)}}),n}function s(t){var n="";return e.ajax({url:_spPageContextInfo.webAbsoluteUrl+"/_api/web/getuserbyid("+t+")",method:"GET",async:!1,headers:{Accept:"application/json; odata=verbose"},success:function(e){n=e.d},error:function(e){console.log(e)}}),n}t("clienttemplates.js"),t("clientforms.js"),t("clientpeoplepicker.js"),t("autofill.js"),e.fn.spPeoplePicker=function(){var t=e(this).attr("id");ExecuteOrDelayUntilScriptLoaded(function(){n(t)},"sp.core.js")},e.fn.GetUserNames=function(){return o(e(this).attr("id")).slice(0,-2)},e.fn.GetUserIDs=function(){return i(e(this).attr("id"))},e.fn.SetUserIDs=function(t){if(t.length>0)return a(e(this).attr("id"),t)}}(jQuery);
+!function(e){function t(e){var t=document.createElement("script");t.setAttribute("type","text/javascript"),t.setAttribute("src","/_layouts/15/"+e),document.getElementsByTagName("head")[0].appendChild(t)}function n(e){if(null!=e){var t=e+"_TopSpan",n=null,r=this.SPClientPeoplePicker.SPClientPeoplePickerDict;for(var i in r)if(i==t){n=r[i];break}return n}}function r(t,r){var i=n(t);null!=i&&r.forEach(function(t){var n=function(t){var n="";return e.ajax({url:_spPageContextInfo.webAbsoluteUrl+"/_api/web/getuserbyid("+t+")",method:"GET",async:!1,headers:{Accept:"application/json; odata=verbose"},success:function(e){n=e.d},error:function(e){console.log(e)}}),n}(t);null!=n&&i.AddUserKeys(n.LoginName,!1)})}function i(t){var n="";return e.ajax({url:_spPageContextInfo.webAbsoluteUrl+"/_api/web/ensureuser",method:"POST",async:!1,contentType:"application/json;odata=verbose",data:JSON.stringify({logonName:t}),headers:{Accept:"application/json; odata=verbose","X-RequestDigest":e("#__REQUESTDIGEST").val()},success:function(e){n=e.d.Id},error:function(e){console.log(e)}}),n}t("clienttemplates.js"),t("clientforms.js"),t("clientpeoplepicker.js"),t("autofill.js"),e.fn.spPeoplePicker=function(){var t=e(this).attr("id");ExecuteOrDelayUntilScriptLoaded(function(){!function(e){var t={PrincipalAccountType:"User,DL,SecGroup,SPGroup",SearchPrincipalSource:15,ResolvePrincipalSource:15,AllowMultipleValues:!0,MaximumEntitySuggestions:50,Width:"280px"};this.SPClientPeoplePicker_InitStandaloneControlWrapper(e,null,t)}(t)},"sp.core.js")},e.fn.GetUserNames=function(){return function(e){var t=n(e);if(null!=t){for(var r=t.GetAllUserInfo(),i="",o=0;o<r.length;o++)i+=r[o].DisplayText+";#";return i}return""}(e(this).attr("id")).slice(0,-2)},e.fn.GetUserIDs=function(){return function(e){var t=n(e);if(null!=t){for(var r=t.GetAllUserInfo(),o=[],a=0;a<r.length;a++){var l=i(r[a].Key);o.push(l)}return o}return""}(e(this).attr("id"))},e.fn.SetUserIDs=function(t){if(t.length>0)return r(e(this).attr("id"),t)}}(jQuery);