diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ba78ca84..accfed4c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -318,7 +318,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
         if: steps.should-skip.outputs.skip != 'true'
         with:
-          components: llvm-tools-preview
+          components: llvm-tools-preview,rust-src
       - name: Install cargo-llvm-cov
         if: steps.should-skip.outputs.skip != 'true'
         uses: taiki-e/install-action@cargo-llvm-cov
@@ -347,6 +347,7 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
         with:
           targets: wasm32-unknown-emscripten
+          components: rust-src
       - uses: actions/setup-node@v4
         with:
           node-version: 14
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
deleted file mode 100644
index 133187e9..00000000
--- a/rust-toolchain.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-[toolchain]
-components = [ "rust-src" ]