diff --git a/package-lock.json b/package-lock.json
index c562150..b276991 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,8 +9,7 @@
       "version": "1.3.1",
       "license": "BSD-3-Clause",
       "dependencies": {
-        "@babel/polyfill": "^7.10.4",
-        "@recogito/recogito-client-core": "1.3.0",
+        "@recogito/recogito-client-core": "1.3.1",
         "axios": "^0.21.1",
         "preact": "^10.5.13",
         "tiny-emitter": "^2.1.0"
@@ -1781,10 +1780,11 @@
       }
     },
     "node_modules/@recogito/recogito-client-core": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/@recogito/recogito-client-core/-/recogito-client-core-1.3.0.tgz",
-      "integrity": "sha512-LNUREa1j2SW+LbQuxqMyNbKj9jz+zQUQGtrIGAgs+d+FhonJ+pzSoYKAZdpdYNI0+60wympG3LJncq0Lu7aghQ==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/@recogito/recogito-client-core/-/recogito-client-core-1.3.1.tgz",
+      "integrity": "sha512-c2RuHNrskp37ULQEuLxugus6HF8y5gX9wi7ZjWQJ7+Clb7+PzJhOE3/RDiYZX/vJm7M2MOlBfb1XgTfl8xOFjw==",
       "dependencies": {
+        "@babel/polyfill": "^7.10.4",
         "downshift": "^6.1.3",
         "fast-deep-equal": "^3.1.3",
         "node-polyglot": "^2.4.0",
@@ -13256,10 +13256,11 @@
       }
     },
     "@recogito/recogito-client-core": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/@recogito/recogito-client-core/-/recogito-client-core-1.3.0.tgz",
-      "integrity": "sha512-LNUREa1j2SW+LbQuxqMyNbKj9jz+zQUQGtrIGAgs+d+FhonJ+pzSoYKAZdpdYNI0+60wympG3LJncq0Lu7aghQ==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/@recogito/recogito-client-core/-/recogito-client-core-1.3.1.tgz",
+      "integrity": "sha512-c2RuHNrskp37ULQEuLxugus6HF8y5gX9wi7ZjWQJ7+Clb7+PzJhOE3/RDiYZX/vJm7M2MOlBfb1XgTfl8xOFjw==",
       "requires": {
+        "@babel/polyfill": "^7.10.4",
         "downshift": "^6.1.3",
         "fast-deep-equal": "^3.1.3",
         "node-polyglot": "^2.4.0",
diff --git a/package.json b/package.json
index a7673e3..c13015a 100644
--- a/package.json
+++ b/package.json
@@ -51,8 +51,7 @@
     "webpack-dev-server": "^3.11.2"
   },
   "dependencies": {
-    "@babel/polyfill": "^7.10.4",
-    "@recogito/recogito-client-core": "1.3.0",
+    "@recogito/recogito-client-core": "1.3.1",
     "axios": "^0.21.1",
     "preact": "^10.5.13",
     "tiny-emitter": "^2.1.0"
diff --git a/src/index.js b/src/index.js
index 541beba..d29fc5b 100644
--- a/src/index.js
+++ b/src/index.js
@@ -2,18 +2,14 @@ import React from 'react';
 import ReactDOM from 'react-dom';
 import axios from 'axios';
 import Emitter from 'tiny-emitter';
-import '@babel/polyfill';
 import {
   WebAnnotation, 
-  addPolyfills,
   createEnvironment,
   setLocale 
 } from '@recogito/recogito-client-core';
 import TextAnnotator from './TextAnnotator';
 import { deflateHTML } from './utils';
 
-addPolyfills(); // Extra polyfills that babel doesn't include
-
 import '@recogito/recogito-client-core/themes/default';
 
 /**
diff --git a/src/polyfills/index.js b/src/polyfills/index.js
new file mode 100644
index 0000000..e69de29