diff --git a/.github/workflows/codecov-ci.yml b/.github/workflows/codecov-ci.yml
index 90a58fba4a9..5b1fba9333b 100644
--- a/.github/workflows/codecov-ci.yml
+++ b/.github/workflows/codecov-ci.yml
@@ -17,11 +17,12 @@ jobs:
           sudo apt-get -y install lcov
       - uses: actions/checkout@v4
       - name: Run Code Coverage Build
-        run: ./util/codecov-ci.sh ${{ runner.temp }}/build
+        run: ./util/codecov-ci.sh ./build
       - name: Upload code coverage report to Codecov
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
         uses: codecov/codecov-action@v4
         with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          files: "${{ runner.temp }}/build/coverage-default.info,${{ runner.temp }}/build/coverage-no-asm.info"
+          files: "./build/coverage-default.info,./build/coverage-no-asm.info"
           verbose: true
           fail_ci_if_error: true
diff --git a/util/codecov-ci.sh b/util/codecov-ci.sh
index 5f737ba4297..a914a5a1373 100755
--- a/util/codecov-ci.sh
+++ b/util/codecov-ci.sh
@@ -36,7 +36,7 @@ LCOV_PARAMS+=(--exclude '*/gtest_*')
 LCOV_PARAMS+=(--exclude '*/wycheproof_*')
 if [[ "$(uname -s)" == "Darwin" ]]; then
   LCOV_PARAMS+=(--exclude '/Applications/*')
-  LCOV_IGNORE_ERRORS="inconsistent,inconsistent,gcov,gcov"
+  LCOV_IGNORE_ERRORS="inconsistent,inconsistent,gcov,gcov,range,unused,unused"
   GENHTML_IGNORE_ERRORS="inconsistent,unmapped"
 else
   LCOV_PARAMS+=(--exclude '/usr/*')
@@ -58,7 +58,7 @@ function generate_coverage() {
 
   # Build
   cmake ${2} ${CMAKE_SETUP_PARAMS} -B "${BUILD_DIR}"
-  cmake --build "${BUILD_DIR}" --target all_tests -j
+  cmake --build "${BUILD_DIR}" --target all_tests --parallel
 
   # Collect initial coverage data
   lcov --capture "${LCOV_PARAMS[@]}" --initial --directory "${BUILD_DIR}" --output-file "${BUILD}/initial-${1}.info"