diff --git a/bower.json b/bower.json
index e6539fe8d..911996f26 100644
--- a/bower.json
+++ b/bower.json
@@ -26,7 +26,7 @@
     "js-data": "~2.9.0",
     "js-data-angular": "~3.2.1",
     "jsen": "~0.6.1",
-    "lodash": "~3.10.0",
+    "lodash": "~4.16.0",
     "ng-dialog": "~0.6.4",
     "ng-file-upload": "~11.2.3",
     "ngBootbox": "~0.1.3",
diff --git a/openslides/motions/static/js/motions/site.js b/openslides/motions/static/js/motions/site.js
index 6cc5693fe..3f451bbd2 100644
--- a/openslides/motions/static/js/motions/site.js
+++ b/openslides/motions/static/js/motions/site.js
@@ -1607,37 +1607,13 @@ angular.module('OpenSlidesApp.motions.site', ['OpenSlidesApp.motions', 'OpenSlid
                 }
             });
 
-            // TODO (Issue #2293):
-            // fix _.uniqWith(importedXXX, _.isEqual);
-            // (You need lodash version >= 4.0.0)
-
-            // unique users
-            var importedUsersUnique = [];
-            importedUsers.forEach(function (u1) {
-                var unique = true;
-                importedUsersUnique.forEach(function (u2) {
-                    if (u1.first_name == u2.first_name &&
-                        u1.last_name == u2.last_name) {
-                        unique = false;
-                    }
-                });
-                if (unique) {
-                    importedUsersUnique.push(u1);
-                }
+            // unique users and categories
+            var importedUsersUnique = _.uniqWith(importedUsers, function (u1, u2) {
+                return u1.first_name == u2.first_name &&
+                    u1.last_name == u2.last_name;
             });
-
-            // unique categories
-            var importedCategoriesUnique = [];
-            importedCategories.forEach(function (c1) {
-                var unique = true;
-                importedCategoriesUnique.forEach(function (c2) {
-                    if (c1.name == c2.name) {
-                        unique = false;
-                    }
-                });
-                if (unique) {
-                    importedCategoriesUnique.push(c1);
-                }
+            var importedCategoriesUnique = _.uniqWith(importedCategories, function (c1, c2) {
+                return c1.name == c2.name;
             });
 
             // Promises for users and categories
diff --git a/openslides/users/static/js/users/site.js b/openslides/users/static/js/users/site.js
index fe2eaf8c3..88337768b 100644
--- a/openslides/users/static/js/users/site.js
+++ b/openslides/users/static/js/users/site.js
@@ -189,7 +189,7 @@ angular.module('OpenSlidesApp.users.site', ['OpenSlidesApp.users'])
             link: function($scope, $element, $attr, ctrl, $transclude) {
                 var block, childScope, previousElements, perms;
                 if ($attr.osPerms[0] === '!') {
-                    perms = _.trimLeft($attr.osPerms, '!');
+                    perms = _.trimStart($attr.osPerms, '!');
                 } else {
                     perms = $attr.osPerms;
                 }