diff --git a/app/javascript/mastodon/features/notifications/components/clear_column_button.js b/app/javascript/mastodon/features/notifications/components/clear_column_button.js
index 22a10753f555a5193a0879d100a676c053c4250c..e0bf4c82d5b2029762d64a3506211445d6a6981d 100644
--- a/app/javascript/mastodon/features/notifications/components/clear_column_button.js
+++ b/app/javascript/mastodon/features/notifications/components/clear_column_button.js
@@ -2,7 +2,7 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import { FormattedMessage } from 'react-intl';
 
-export default class ClearColumnButton extends React.Component {
+export default class ClearColumnButton extends React.PureComponent {
 
   static propTypes = {
     onClick: PropTypes.func.isRequired,
diff --git a/app/javascript/mastodon/features/ui/components/bundle.js b/app/javascript/mastodon/features/ui/components/bundle.js
index 06a6c9cddf05b764998614c0e0a5d3afd42ddc8c..e7d93525175c2653b90d9bd31d57b36a1813a042 100644
--- a/app/javascript/mastodon/features/ui/components/bundle.js
+++ b/app/javascript/mastodon/features/ui/components/bundle.js
@@ -4,7 +4,7 @@ import PropTypes from 'prop-types';
 const emptyComponent = () => null;
 const noop = () => { };
 
-class Bundle extends React.Component {
+class Bundle extends React.PureComponent {
 
   static propTypes = {
     fetchComponent: PropTypes.func.isRequired,
diff --git a/app/javascript/mastodon/features/ui/components/bundle_column_error.js b/app/javascript/mastodon/features/ui/components/bundle_column_error.js
index cd124746acbcc534413099ff83dd394cda7bbe9f..f39ebd900b103e77b6f7c7b3be933f481cb6de71 100644
--- a/app/javascript/mastodon/features/ui/components/bundle_column_error.js
+++ b/app/javascript/mastodon/features/ui/components/bundle_column_error.js
@@ -13,7 +13,7 @@ const messages = defineMessages({
   retry: { id: 'bundle_column_error.retry', defaultMessage: 'Try again' },
 });
 
-class BundleColumnError extends React.Component {
+class BundleColumnError extends React.PureComponent {
 
   static propTypes = {
     onRetry: PropTypes.func.isRequired,
diff --git a/app/javascript/mastodon/features/ui/components/bundle_modal_error.js b/app/javascript/mastodon/features/ui/components/bundle_modal_error.js
index 928bfe1f7d5f5b975912b8cf77260ae185500a7c..f9365b95bcca3598499c3a7e9683388f775b26de 100644
--- a/app/javascript/mastodon/features/ui/components/bundle_modal_error.js
+++ b/app/javascript/mastodon/features/ui/components/bundle_modal_error.js
@@ -10,7 +10,7 @@ const messages = defineMessages({
   close: { id: 'bundle_modal_error.close', defaultMessage: 'Close' },
 });
 
-class BundleModalError extends React.Component {
+class BundleModalError extends React.PureComponent {
 
   static propTypes = {
     onRetry: PropTypes.func.isRequired,