diff --git a/.flowconfig b/.flowconfig
index a4493837b7..453cebbcda 100644
--- a/.flowconfig
+++ b/.flowconfig
@@ -6,7 +6,6 @@
 .*/node_modules/styled-components/.*
 .*/node_modules/graphql/.*
 .*/node_modules/metro.*
-.*/node_modules/preact/.*
 .*/node_modules/@parcel/.*
 
 [untyped]
diff --git a/.flowconfig-ci b/.flowconfig-ci
index 97256ad2e7..599ace2fc3 100644
--- a/.flowconfig-ci
+++ b/.flowconfig-ci
@@ -6,7 +6,6 @@
 .*/node_modules/styled-components/.*
 .*/node_modules/graphql/.*
 .*/node_modules/metro.*
-.*/node_modules/preact/.*
 .*/node_modules/@parcel/.*
 
 
diff --git a/packages/is-prop-valid/src/props.js b/packages/is-prop-valid/src/props.js
index f82355efd6..664de71e53 100644
--- a/packages/is-prop-valid/src/props.js
+++ b/packages/is-prop-valid/src/props.js
@@ -481,7 +481,10 @@ const props = {
   yChannelSelector: true,
   z: true,
   zoomAndPan: true,
-  // preact
+
+  // For preact. We have this code here even though Emotion doesn't support
+  // Preact, since @emotion/is-prop-valid is used by some libraries outside of
+  // the context of Emotion.
   for: true,
   class: true,
   autofocus: true
diff --git a/packages/jest/package.json b/packages/jest/package.json
index eb3b3484f5..dca95d2966 100644
--- a/packages/jest/package.json
+++ b/packages/jest/package.json
@@ -41,8 +41,6 @@
     "@emotion/react": "11.9.0",
     "@types/jest": "^27.0.3",
     "enzyme-to-json": "^3.6.1",
-    "preact": "^8.2.9",
-    "preact-render-to-json": "^3.6.6",
     "pretty-format": "^22.4.3",
     "react": "16.14.0",
     "react-dom": "16.14.0",
diff --git a/packages/jest/test/__snapshots__/preact.test.js.snap b/packages/jest/test/__snapshots__/preact.test.js.snap
deleted file mode 100644
index 0d86245d12..0000000000
--- a/packages/jest/test/__snapshots__/preact.test.js.snap
+++ /dev/null
@@ -1,21 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`jest-emotion with preact handles elements with no props 1`] = `"<div />"`;
-
-exports[`jest-emotion with preact replaces class names and inserts styles into preact test component snapshots 1`] = `
-".emotion-0 {
-  color: red;
-}
-
-.emotion-1 {
-  width: 100%;
-}
-
-<div
-  class="emotion-0"
->
-  <svg
-    class="emotion-1"
-  />
-</div>"
-`;
diff --git a/packages/jest/test/preact.test.js b/packages/jest/test/preact.test.js
deleted file mode 100644
index 70bd010cb8..0000000000
--- a/packages/jest/test/preact.test.js
+++ /dev/null
@@ -1,44 +0,0 @@
-/* eslint-disable react/no-unknown-property */
-import 'test-utils/legacy-env'
-/** @jsx h */
-import { h } from 'preact'
-import render from 'preact-render-to-json'
-import prettyFormat from 'pretty-format'
-import * as emotion from '@emotion/css'
-import { createSerializer } from '@emotion/jest'
-const { ReactElement, ReactTestComponent, DOMElement } = prettyFormat.plugins
-
-let emotionPlugin = createSerializer()
-
-describe('jest-emotion with preact', () => {
-  const divStyle = emotion.css`
-    color: red;
-  `
-  const svgStyle = emotion.css`
-    width: 100%;
-  `
-
-  it('replaces class names and inserts styles into preact test component snapshots', () => {
-    const tree = render(
-      <div class={divStyle}>
-        <svg class={svgStyle} />
-      </div>
-    )
-
-    const output = prettyFormat(tree, {
-      plugins: [emotionPlugin, ReactElement, ReactTestComponent, DOMElement]
-    })
-
-    expect(output).toMatchSnapshot()
-  })
-
-  it('handles elements with no props', () => {
-    const tree = render(<div />)
-
-    const output = prettyFormat(tree, {
-      plugins: [emotionPlugin, ReactElement, ReactTestComponent, DOMElement]
-    })
-
-    expect(output).toMatchSnapshot()
-  })
-})
diff --git a/yarn.lock b/yarn.lock
index 57b85a09e9..0406c4edca 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -24724,16 +24724,6 @@ potrace@^2.1.8:
   dependencies:
     jimp "^0.14.0"
 
-preact-render-to-json@^3.6.6:
-  version "3.6.6"
-  resolved "https://registry.npmjs.org/preact-render-to-json/-/preact-render-to-json-3.6.6.tgz#f67f48581912ac53fc9f4873bc6d7ce342f71c20"
-  integrity sha1-9n9IWBkSrFP8n0hzvG1840L3HCA=
-
-preact@^8.2.9:
-  version "8.5.0"
-  resolved "https://registry.npmjs.org/preact/-/preact-8.5.0.tgz#05690de3af035cd8ad393e8b4057b8ab29aedee1"
-  integrity sha512-S2OOz+lRjfbqDbV5LOIcJ6yfYvshDtKvvsMwaFW84wuw4HtFUYH67T+hnWhdCDYtW8BfmyIg9utz16s6U80HbA==
-
 prebuild-install@^6.0.1:
   version "6.1.4"
   resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-6.1.4.tgz#ae3c0142ad611d58570b89af4986088a4937e00f"