diff --git a/packages/core/src/components/fields/SchemaField.js b/packages/core/src/components/fields/SchemaField.js
index d478cf6565..1f65be0dc2 100644
--- a/packages/core/src/components/fields/SchemaField.js
+++ b/packages/core/src/components/fields/SchemaField.js
@@ -2,6 +2,7 @@ import { ADDITIONAL_PROPERTY_FLAG } from "../../utils";
 import IconButton from "../IconButton";
 import React from "react";
 import PropTypes from "prop-types";
+import * as ReactIs from "react-is";
 import * as types from "../../types";
 
 import {
@@ -30,7 +31,7 @@ const COMPONENT_TYPES = {
 
 function getFieldComponent(schema, uiSchema, idSchema, fields) {
   const field = uiSchema["ui:field"];
-  if (typeof field === "function") {
+  if (typeof field !== "string" && ReactIs.isValidElementType(field)) {
     return field;
   }
   if (typeof field === "string" && field in fields) {
diff --git a/packages/core/src/utils.js b/packages/core/src/utils.js
index ebfaa89dfe..4044e242d0 100644
--- a/packages/core/src/utils.js
+++ b/packages/core/src/utils.js
@@ -108,11 +108,7 @@ export function getWidget(schema, widget, registeredWidgets = {}) {
     return Widget.MergedWidget;
   }
 
-  if (
-    typeof widget === "function" ||
-    ReactIs.isForwardRef(React.createElement(widget)) ||
-    ReactIs.isMemo(widget)
-  ) {
+  if (typeof widget !== "string" && ReactIs.isValidElementType(widget)) {
     return mergeOptions(widget);
   }