diff --git a/.github/workflows/r-lib-check.yaml b/.github/workflows/r-lib-check.yaml
index 8d12642..cd7304e 100644
--- a/.github/workflows/r-lib-check.yaml
+++ b/.github/workflows/r-lib-check.yaml
@@ -11,4 +11,5 @@ jobs:
   R-CMD-check:
     runs-on: ubuntu-latest
     steps:
+      - uses: r-lib/actions/setup-tinytex@v2
       - uses: uclahs-cds/tool-R-CMD-check-action@stable