diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 0080b04..87ef61a 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -31,6 +31,9 @@ jobs:
 
       - uses: r-lib/actions/setup-pandoc@v2
 
+      - if: runner.os == 'macOS'
+        run: brew install --cask xquartz
+
       - uses: r-lib/actions/setup-r@v2
         with:
           r-version: ${{ matrix.config.r }}