diff --git a/.gitignore b/.gitignore
index 69060a26..d8bec488 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,4 +35,4 @@ yarn-error.log*
 .vercel
 
 # external fonts
-public/fonts/Optimistic_*.woff2
+public/fonts/**/Optimistic_*.woff2
diff --git a/package.json b/package.json
index b6a78db5..f4f9a802 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "scripts": {
     "analyze": "ANALYZE=true next build",
     "dev": "next-remote-watch ./src/content",
-    "build": "next build && node ./scripts/downloadFonts.js",
+    "build": "next build && node --experimental-modules ./scripts/downloadFonts.mjs",
     "lint": "next lint",
     "lint:fix": "next lint --fix",
     "format:source": "prettier --config .prettierrc --write \"{plugins,src}/**/*.{js,ts,jsx,tsx,css}\"",
diff --git a/scripts/downloadFonts.js b/scripts/downloadFonts.js
deleted file mode 100644
index 62fe5bca..00000000
--- a/scripts/downloadFonts.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/**
- * Copyright (c) Facebook, Inc. and its affiliates.
- */
-
-const {execSync} = require('child_process');
-
-// So that we don't need to check them into the repo.
-// Serving them from the same domain is better for perf so do this on deploy.
-execSync(
-  'curl https://conf.reactjs.org/fonts/Optimistic_Display_W_Lt.woff2 --output public/fonts/Optimistic_Display_W_Lt.woff2'
-);
-execSync(
-  'curl https://conf.reactjs.org/fonts/Optimistic_Display_W_Md.woff2 --output public/fonts/Optimistic_Display_W_Md.woff2'
-);
-execSync(
-  'curl https://conf.reactjs.org/fonts/Optimistic_Display_W_Bd.woff2 --output public/fonts/Optimistic_Display_W_Bd.woff2'
-);
-execSync(
-  'curl https://conf.reactjs.org/fonts/Optimistic_Display_W_SBd.woff2 --output public/fonts/Optimistic_Display_W_SBd.woff2'
-);
-execSync(
-  'curl https://conf.reactjs.org/fonts/Optimistic_Text_W_Rg.woff2 --output public/fonts/Optimistic_Text_W_Rg.woff2'
-);
-execSync(
-  'curl https://conf.reactjs.org/fonts/Optimistic_Text_W_Md.woff2 --output public/fonts/Optimistic_Text_W_Md.woff2'
-);
-execSync(
-  'curl https://conf.reactjs.org/fonts/Optimistic_Text_W_Bd.woff2 --output public/fonts/Optimistic_Text_W_Bd.woff2'
-);
diff --git a/scripts/downloadFonts.mjs b/scripts/downloadFonts.mjs
new file mode 100644
index 00000000..008a3810
--- /dev/null
+++ b/scripts/downloadFonts.mjs
@@ -0,0 +1,75 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ */
+
+import { exec } from 'child_process';
+import { mkdir, promises as fsPromises } from 'fs';
+import { dirname } from 'path';
+import { promisify } from 'util';
+
+const execAsync = promisify(exec);
+
+// Taken from Downloads on https://www.facebook.com/brand/meta/typography/.
+// To refresh the list, go to the Conf website's public/fonts/ folder and run this:
+// printf "\n[\n%s\n]\n" "$(find . -type f ! -path "*/.*" -name "*.woff2" | sed 's|^./||' | sort | awk '{printf "  \"%s\",\n", $0}' | sed '$s/,$//')"
+const paths = [
+  "Optimistic_Display_W_Bd.woff2",
+  "Optimistic_Display_W_BdIt.woff2",
+  "Optimistic_Display_W_Lt.woff2",
+  "Optimistic_Display_W_Md.woff2",
+  "Optimistic_Display_W_MdIt.woff2",
+  "Optimistic_Display_W_SBd.woff2",
+  "Optimistic_Display_W_SBdIt.woff2",
+  "Optimistic_Display_W_XBd.woff2",
+  "Optimistic_Display_W_XLt.woff2",
+  "Optimistic_Text_W_Bd.woff2",
+  "Optimistic_Text_W_BdIt.woff2",
+  "Optimistic_Text_W_It.woff2",
+  "Optimistic_Text_W_Md.woff2",
+  "Optimistic_Text_W_MdIt.woff2",
+  "Optimistic_Text_W_Rg.woff2",
+  "Optimistic_Text_W_XBd.woff2",
+  "Optimistic_Text_W_XBdIt.woff2",
+  "arabic/Optimistic_Display_Arbc_W_Bd.woff2",
+  "arabic/Optimistic_Display_Arbc_W_Md.woff2",
+  "arabic/Optimistic_Display_Arbc_W_SBd.woff2",
+  "arabic/Optimistic_Text_Arbc_W_Bd.woff2",
+  "arabic/Optimistic_Text_Arbc_W_Md.woff2",
+  "arabic/Optimistic_Text_Arbc_W_Rg.woff2",
+  "arabic/Optimistic_Text_Arbc_W_XBd.woff2",
+  "cyrillic/Optimistic_Display_Cyrl_W_Bd.woff2",
+  "cyrillic/Optimistic_Display_Cyrl_W_Md.woff2",
+  "cyrillic/Optimistic_Display_Cyrl_W_SBd.woff2",
+  "cyrillic/Optimistic_Text_Cyrl_W_Bd.woff2",
+  "cyrillic/Optimistic_Text_Cyrl_W_Md.woff2",
+  "cyrillic/Optimistic_Text_Cyrl_W_Rg.woff2",
+  "cyrillic/Optimistic_Text_Cyrl_W_XBd.woff2",
+  "devanagari/Optimistic_Text_Deva_W_Bd.woff2",
+  "devanagari/Optimistic_Text_Deva_W_Md.woff2",
+  "devanagari/Optimistic_Text_Deva_W_Rg.woff2",
+  "devanagari/Optimistic_Text_Deva_W_XBd.woff2",
+  "vietnamese/Optimistic_Display_Viet_W_Bd.woff2",
+  "vietnamese/Optimistic_Display_Viet_W_Md.woff2",
+  "vietnamese/Optimistic_Display_Viet_W_SBd.woff2",
+  "vietnamese/Optimistic_Text_Viet_W_Bd.woff2",
+  "vietnamese/Optimistic_Text_Viet_W_Md.woff2",
+  "vietnamese/Optimistic_Text_Viet_W_Rg.woff2",
+  "vietnamese/Optimistic_Text_Viet_W_XBd.woff2"
+];
+
+const baseURL = "https://conf.reactjs.org/fonts/";
+const outputDir = "public/fonts/";
+
+await Promise.all(
+  paths.map(async (path) => {
+    const localPath = `${outputDir}${path}`;
+    const localDir = dirname(localPath);
+    await fsPromises.mkdir(localDir, { recursive: true });
+
+    const command = `curl ${baseURL}${path} --output ${localPath}`;
+    await execAsync(command);
+    console.log(`Downloaded ${path}`);
+  })
+);
+
+console.log("All fonts downloaded.");