diff --git a/.github/workflows/code-quality.yml b/.github/workflows/code-quality.yml
index 088acbb8..0317c1a9 100644
--- a/.github/workflows/code-quality.yml
+++ b/.github/workflows/code-quality.yml
@@ -71,7 +71,7 @@ jobs:
         run: cargo install cargo-tarpaulin --version 0.28.0
       - name: Generate code coverage
         run: |
-          cargo tarpaulin -p ort --features fetch-models --verbose --timeout 120 --out xml --engine llvm --doc --lib --tests
+          cargo tarpaulin -p ort --features fetch-models --verbose --timeout 120 --out xml --engine llvm --doc --lib --tests -- --test-threads 1
       - name: Upload to codecov.io
         uses: codecov/codecov-action@v4
         with: