diff --git a/package.json b/package.json
index 8e0ee63e..820a4613 100644
--- a/package.json
+++ b/package.json
@@ -18,8 +18,8 @@
     "@mdx-js/react": "^1.6.22",
     "@next/mdx": "^11.1.3",
     "next": "11.1.4",
-    "react": "17.0.2",
-    "react-dom": "17.0.2",
+    "react": "18.0.0",
+    "react-dom": "18.0.0",
     "rebass": "^4.0.7",
     "styled-components": "^5.3.3",
     "theme-ui": "0.3.5"
@@ -35,6 +35,6 @@
     "jest": "^27.2.5",
     "nextjs-sitemap-generator": "^1.3.1",
     "prettier": "^2.4.1",
-    "react-test-renderer": "^17.0.2"
+    "react-test-renderer": "^18.0.0"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index baa9cde0..d2c156e1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5302,16 +5302,15 @@ raw-body@2.4.1:
     iconv-lite "0.4.24"
     unpipe "1.0.0"
 
-react-dom@17.0.2:
-  version "17.0.2"
-  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-17.0.2.tgz#ecffb6845e3ad8dbfcdc498f0d0a939736502c23"
-  integrity sha512-s4h96KtLDUQlsENhMn1ar8t2bEa+q/YAtj8pPPdIjPDGBDIVNsrD9aXNWqspUe6AzKCIG0C1HZZLqLV7qpOBGA==
+react-dom@18.0.0:
+  version "18.0.0"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-18.0.0.tgz#26b88534f8f1dbb80853e1eabe752f24100d8023"
+  integrity sha512-XqX7uzmFo0pUceWFCt7Gff6IyIMzFUn7QMZrbrQfGxtaxXZIcGQzoNpRLE3fQLnS4XzLLPMZX2T9TRcSrasicw==
   dependencies:
     loose-envify "^1.1.0"
-    object-assign "^4.1.1"
-    scheduler "^0.20.2"
+    scheduler "^0.21.0"
 
-react-is@17.0.2, "react-is@^16.12.0 || ^17.0.0", react-is@^17.0.1, react-is@^17.0.2:
+react-is@17.0.2, "react-is@^16.12.0 || ^17.0.0", react-is@^17.0.1:
   version "17.0.2"
   resolved "https://registry.yarnpkg.com/react-is/-/react-is-17.0.2.tgz#e691d4a8e9c789365655539ab372762b0efb54f0"
   integrity sha512-w2GsyukL62IJnlaff/nRegPQR94C/XXamvMWmSHRJ4y7Ts/4ocGRmTHvOs8PSE6pB3dWOrD/nueuU5sduBsQ4w==
@@ -5321,6 +5320,11 @@ react-is@^16.13.1, react-is@^16.7.0, react-is@^16.8.1, react-is@^16.8.6:
   resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.13.1.tgz#789729a4dc36de2999dc156dd6c1d9c18cea56a4"
   integrity sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==
 
+react-is@^18.0.0:
+  version "18.0.0"
+  resolved "https://registry.yarnpkg.com/react-is/-/react-is-18.0.0.tgz#026f6c4a27dbe33bf4a35655b9e1327c4e55e3f5"
+  integrity sha512-yUcBYdBBbo3QiPsgYDcfQcIkGZHfxOaoE6HLSnr1sPzMhdyxusbfKOSUbSd/ocGi32dxcj366PsTj+5oggeKKw==
+
 react-refresh@0.8.3:
   version "0.8.3"
   resolved "https://registry.yarnpkg.com/react-refresh/-/react-refresh-0.8.3.tgz#721d4657672d400c5e3c75d063c4a85fb2d5d68f"
@@ -5344,23 +5348,21 @@ react-test-renderer@^16.0.0-0:
     react-is "^16.8.6"
     scheduler "^0.19.1"
 
-react-test-renderer@^17.0.2:
-  version "17.0.2"
-  resolved "https://registry.yarnpkg.com/react-test-renderer/-/react-test-renderer-17.0.2.tgz#4cd4ae5ef1ad5670fc0ef776e8cc7e1231d9866c"
-  integrity sha512-yaQ9cB89c17PUb0x6UfWRs7kQCorVdHlutU1boVPEsB8IDZH6n9tHxMacc3y0JoXOJUsZb/t/Mb8FUWMKaM7iQ==
+react-test-renderer@^18.0.0:
+  version "18.0.0"
+  resolved "https://registry.yarnpkg.com/react-test-renderer/-/react-test-renderer-18.0.0.tgz#fa403d625ea9478a70ace43db88833f6c3a5bb4c"
+  integrity sha512-SyZTP/FSkwfiKOZuTZiISzsrC8A80KNlQ8PyyoGoOq+VzMAab6Em1POK/CiX3+XyXG6oiJa1C53zYDbdrJu9fw==
   dependencies:
-    object-assign "^4.1.1"
-    react-is "^17.0.2"
+    react-is "^18.0.0"
     react-shallow-renderer "^16.13.1"
-    scheduler "^0.20.2"
+    scheduler "^0.21.0"
 
-react@17.0.2:
-  version "17.0.2"
-  resolved "https://registry.yarnpkg.com/react/-/react-17.0.2.tgz#d0b5cc516d29eb3eee383f75b62864cfb6800037"
-  integrity sha512-gnhPt75i/dq/z3/6q/0asP78D0u592D5L1pd7M8P+dck6Fu/jJeL6iVVK23fptSUZj8Vjf++7wXA8UNclGQcbA==
+react@18.0.0:
+  version "18.0.0"
+  resolved "https://registry.yarnpkg.com/react/-/react-18.0.0.tgz#b468736d1f4a5891f38585ba8e8fb29f91c3cb96"
+  integrity sha512-x+VL6wbT4JRVPm7EGxXhZ8w8LTROaxPXOqhlGyVSrv0sB1jkyFGgXxJ8LVoPRLvPR6/CIZGFmfzqUa2NYeMr2A==
   dependencies:
     loose-envify "^1.1.0"
-    object-assign "^4.1.1"
 
 read-pkg-up@^3.0.0:
   version "3.0.0"
@@ -5623,13 +5625,12 @@ scheduler@^0.19.1:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
 
-scheduler@^0.20.2:
-  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.20.2.tgz#4baee39436e34aa93b4874bddcbf0fe8b8b50e91"
-  integrity sha512-2eWfGgAqqWFGqtdMmcL5zCMK1U8KlXv8SQFGglL3CEtd0aDVDWgeF/YoCmvln55m5zSk3J/20hTaSBeSObsQDQ==
+scheduler@^0.21.0:
+  version "0.21.0"
+  resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.21.0.tgz#6fd2532ff5a6d877b6edb12f00d8ab7e8f308820"
+  integrity sha512-1r87x5fz9MXqswA2ERLo0EbOAU74DpIUO090gIasYTqlVoJeMcl+Z1Rg7WHz+qtPujhS/hGIt9kxZOYBV3faRQ==
   dependencies:
     loose-envify "^1.1.0"
-    object-assign "^4.1.1"
 
 "semver@2 || 3 || 4 || 5", semver@^5.4.1, semver@^5.7.0, semver@^5.7.1:
   version "5.7.1"