diff --git a/app/soapbox/components/autosuggest-input.tsx b/app/soapbox/components/autosuggest-input.tsx
index 9f067c032..122890112 100644
--- a/app/soapbox/components/autosuggest-input.tsx
+++ b/app/soapbox/components/autosuggest-input.tsx
@@ -2,6 +2,7 @@ import { Portal } from '@reach/portal';
 import classNames from 'clsx';
 import { List as ImmutableList } from 'immutable';
 import React from 'react';
+import ImmutablePureComponent from 'react-immutable-pure-component';
 
 import AutosuggestEmoji, { Emoji } from 'soapbox/components/autosuggest-emoji';
 import Icon from 'soapbox/components/icon';
@@ -35,7 +36,7 @@ export interface IAutosuggestInput extends Pick<React.HTMLAttributes<HTMLInputEl
   theme?: InputThemes,
 }
 
-export default class AutosuggestInput extends React.PureComponent<IAutosuggestInput> {
+export default class AutosuggestInput extends ImmutablePureComponent<IAutosuggestInput> {
 
   static defaultProps = {
     autoFocus: false,
diff --git a/app/soapbox/components/autosuggest-textarea.tsx b/app/soapbox/components/autosuggest-textarea.tsx
index 1c576743e..1cdc7fa06 100644
--- a/app/soapbox/components/autosuggest-textarea.tsx
+++ b/app/soapbox/components/autosuggest-textarea.tsx
@@ -1,6 +1,7 @@
 import { Portal } from '@reach/portal';
 import classNames from 'clsx';
 import React from 'react';
+import ImmutablePureComponent from 'react-immutable-pure-component';
 import Textarea from 'react-textarea-autosize';
 
 import { textAtCursorMatchesToken } from 'soapbox/utils/suggestions';
@@ -32,7 +33,7 @@ interface IAutosuggesteTextarea {
   children: React.ReactNode,
 }
 
-class AutosuggestTextarea extends React.PureComponent<IAutosuggesteTextarea> {
+class AutosuggestTextarea extends ImmutablePureComponent<IAutosuggesteTextarea> {
 
   textarea: HTMLTextAreaElement | null = null;
 
diff --git a/app/soapbox/components/emoji-selector.tsx b/app/soapbox/components/emoji-selector.tsx
index 3e418831c..be0ca3a51 100644
--- a/app/soapbox/components/emoji-selector.tsx
+++ b/app/soapbox/components/emoji-selector.tsx
@@ -1,6 +1,7 @@
 // import classNames from 'clsx';
 import React from 'react';
 import { HotKeys } from 'react-hotkeys';
+import ImmutablePureComponent from 'react-immutable-pure-component';
 import { connect } from 'react-redux';
 
 import { getSoapboxConfig } from 'soapbox/actions/soapbox';
@@ -21,7 +22,7 @@ interface IEmojiSelector {
   focused?: boolean,
 }
 
-class EmojiSelector extends React.PureComponent<IEmojiSelector> {
+class EmojiSelector extends ImmutablePureComponent<IEmojiSelector> {
 
   static defaultProps: Partial<IEmojiSelector> = {
     onReact: () => { },
diff --git a/package.json b/package.json
index 94f7fb753..06f47abdc 100644
--- a/package.json
+++ b/package.json
@@ -33,6 +33,7 @@
   "browserslist": [
     "> 0.5%",
     "last 2 versions",
+    "not IE 11",
     "not dead"
   ],
   "dependencies": {
@@ -148,6 +149,7 @@
     "react-helmet": "^6.1.0",
     "react-hot-toast": "^2.4.0",
     "react-hotkeys": "^1.1.4",
+    "react-immutable-pure-component": "^2.2.2",
     "react-inlinesvg": "^3.0.0",
     "react-intl": "^5.0.0",
     "react-motion": "^0.5.2",
diff --git a/yarn.lock b/yarn.lock
index ed5005b21..a1fb69a9b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9443,6 +9443,11 @@ react-hotkeys@^1.1.4:
     mousetrap "^1.5.2"
     prop-types "^15.6.0"
 
+react-immutable-pure-component@^2.2.2:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/react-immutable-pure-component/-/react-immutable-pure-component-2.2.2.tgz#3014d3e20cd5a7a4db73b81f1f1464f4d351684b"
+  integrity sha512-vkgoMJUDqHZfXXnjVlG3keCxSO/U6WeDQ5/Sl0GK2cH8TOxEzQ5jXqDXHEL/jqk6fsNxV05oH5kD7VNMUE2k+A==
+
 react-inlinesvg@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/react-inlinesvg/-/react-inlinesvg-3.0.0.tgz#801c6bac1535334586708cd346f4b1125dcfa8f9"