diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f56b6481dfd..23f8979e0d8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -620,6 +620,12 @@ jobs:
           cargo fmt --manifest-path xtask/Cargo.toml -- --check
           cargo fmt --manifest-path naga/xtask/Cargo.toml -- --check
 
+      - name: "Format `**/*.{md,js,html,yml}` files"
+        uses: creyD/prettier_action@v4.3
+        with:
+          prettier_version: 3.3.3
+          prettier_options: --write .
+
       - name: Check for typos
         uses: crate-ci/typos@v1.24.6