diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 77d40c7b..162c6d3b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -77,6 +77,7 @@ jobs:
     - if: runner.os == 'macOS'
       run: |
         brew install automake bison
+        echo "/usr/local/opt/bison/bin:$PATH" >> $GITHUB_PATH
     - run: ./script/test.sh
     - uses: actions/upload-artifact@v3
       with: