diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index b14eb906..362d5eaa 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -269,12 +269,6 @@ jobs:
           path: ./test_models/
           key: ${{ hashFiles('**/*.stan', 'src/*', 'stan/src/stan/version.hpp', 'Makefile') }}-${{ matrix.os }}-v${{ env.CACHE_VERSION }}
 
-      - name: Install LLVM and Clang
-        uses: KyleMayes/install-llvm-action@v1
-        with:
-          version: "15.0"
-          directory: ${{ runner.temp }}/llvm
-
       - name: Set up TBB
         if: matrix.os == 'windows-latest'
         run: |
@@ -287,9 +281,9 @@ jobs:
           LIBCLANG_PATH: ${{ runner.temp }}/llvm/lib
           LLVM_CONFIG_PATH: ${{ runner.temp }}/llvm/bin/llvm-config
         run: |
-          cargo clippy
-          cargo fmt --check
-          cargo run --example=example --features compile-stan-model
-          cargo test --verbose --features compile-stan-model
-          cargo test --verbose --features compile-stan-model model_compiling -- --ignored
-          cargo test --verbose --all-targets
+          bash -c "cargo clippy"
+          bash -c "cargo fmt --check"
+          bash -c "cargo run --example=example --features compile-stan-model"
+          bash -c "cargo test --verbose --features compile-stan-model"
+          bash -c "cargo test --verbose --features compile-stan-model model_compiling -- --ignored"
+          bash -c "cargo test --verbose --all-targets"