diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5c22d171..c52785df 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,8 @@ jobs:
           target/
         key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
     - name: Install wasm-bindgen
-      run: which wasm-bindgen || cargo install wasm-bindgen-cli
+      # nb. wasm-bindgen-cli version must match `wasm-bindgen` version in Cargo.lock
+      run: cargo install wasm-bindgen-cli --version 0.2.89
       if: ${{ matrix.os == 'ubuntu-latest' }}
     - name: Build
       run: cargo build
diff --git a/src/lib.rs b/src/lib.rs
index fe5b3fb1..1382c8af 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -19,7 +19,11 @@
 //! these pieces fit together.
 //!
 //! [rten_examples]: https://github.com/robertknight/rten/tree/main/rten-examples
-#![cfg_attr(feature = "avx512", feature(stdsimd), feature(avx512_target_feature))]
+#![cfg_attr(
+    feature = "avx512",
+    feature(stdarch_x86_avx512),
+    feature(avx512_target_feature)
+)]
 
 #[allow(unused)] // Docs only
 use rten_tensor::{NdTensor, Tensor};