diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a16c85c..ff6fc4c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -83,6 +83,8 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
         with:
+          # TODO: Pin to 1.81 due to https://github.com/webpack/webpack/issues/15566
+          toolchain: '1.81'
           targets: wasm32-unknown-unknown
       - name: Install wasm-pack
         uses: taiki-e/install-action@wasm-pack