diff --git a/site/package.json b/site/package.json
index 982a3413d..2d4b8d310 100644
--- a/site/package.json
+++ b/site/package.json
@@ -39,10 +39,14 @@
 		"algolia:update": "node scripts/search/update-data.js",
 		"algolia:clean": "node scripts/search/clean.js"
 	},
+	"resolutions": {
+		"@mui/styled-engine": "npm:@mui/styled-engine-sc@latest"
+	},
 	"dependencies": {
 		"@babel/runtime": "^7.3.4",
 		"@icons/material": "^0.4.1",
 		"@internationalized/number": "^3.0.3",
+		"@juggle/resize-observer": "^3.3.1",
 		"@mui/material": "^5.0.4",
 		"@mui/styled-engine": "npm:@mui/styled-engine-sc@latest",
 		"@react-aria/button": "^3.3.4",
diff --git a/site/source/components/ui/animate.tsx b/site/source/components/ui/animate.tsx
index 464e5ea94..5b67e3fa5 100644
--- a/site/source/components/ui/animate.tsx
+++ b/site/source/components/ui/animate.tsx
@@ -9,6 +9,7 @@ import {
 } from 'react-spring'
 import useMeasure from 'react-use-measure'
 import styled from 'styled-components'
+import { ResizeObserver } from '@juggle/resize-observer'
 
 type Props = {
 	children: React.ReactNode
@@ -114,7 +115,7 @@ export function Appear({
 	delay = 0,
 	style,
 }: Props & { unless?: boolean }) {
-	const [ref, { height }] = useMeasure()
+	const [ref, { height }] = useMeasure({ polyfill: ResizeObserver })
 	const animatedStyle = useSpring({
 		delay,
 		config,
diff --git a/yarn.lock b/yarn.lock
index 75024fff2..1922ba061 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1455,6 +1455,11 @@
     "@types/yargs" "^16.0.0"
     chalk "^4.0.0"
 
+"@juggle/resize-observer@^3.3.1":
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/@juggle/resize-observer/-/resize-observer-3.3.1.tgz#b50a781709c81e10701004214340f25475a171a0"
+  integrity sha512-zMM9Ds+SawiUkakS7y94Ymqx+S0ORzpG3frZirN3l+UlXUmSUR7hF4wxCVqW+ei94JzV5kt0uXBcoOEAuiydrw==
+
 "@mui/base@5.0.0-alpha.58":
   version "5.0.0-alpha.58"
   resolved "https://registry.npmjs.org/@mui/base/-/base-5.0.0-alpha.58.tgz"
@@ -1496,9 +1501,9 @@
     prop-types "^15.7.2"
 
 "@mui/styled-engine@^5.2.0", "@mui/styled-engine@npm:@mui/styled-engine-sc@latest":
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/@mui/styled-engine-sc/-/styled-engine-sc-5.1.0.tgz#672fcc97192a7286cf306c92e71bad84eb0885a1"
-  integrity sha512-5ZELhN5OAU65CDOutaB8WCo/tVJY0Sc93LnS+dZovCID4kzjvCtqbQZIbvutc3nvDl1GFukhMkG8oaGWLAsbkw==
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/@mui/styled-engine-sc/-/styled-engine-sc-5.3.0.tgz#4e63e1d2b1a74ea5b422f8b1e12140d8f9356ce9"
+  integrity sha512-dASXl3Xn56tGtDBJC61G4dxsfkkgYaVsqEBqNfmi3NxUjXT7Tlz/wr4FVFJARZ7Fef0NYWNE8sb+exfGecjXyA==
   dependencies:
     prop-types "^15.7.2"