diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fe5c3de..e5835a1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -61,6 +61,16 @@ jobs:
           r-version: ${{ matrix.r-version }}
       - uses: r-lib/actions/setup-pandoc@d3c5be51b12e724e68f33216ca3c148b66d5f0b6 # v2.12.1
       - uses: r-lib/actions/setup-tinytex@d3c5be51b12e724e68f33216ca3c148b66d5f0b6 # v2.12.1
+      # the TinyTeX bundle is too minimal for '--as-cran' to build the PDF
+      # manual, so pull in the extra LaTeX packages Rd2pdf needs. Without
+      # collection-fontsrecommended, the retry that R CMD check makes with
+      # R_RD4PDF=times cannot find the Courier metrics (pcrr8t.tfm).
+      - name: Install additional LaTeX Packages
+        run: |
+          tlmgr update --self
+          tlmgr update --all
+          tlmgr install titling framed inconsolata
+          tlmgr install collection-fontsrecommended
       - uses: r-lib/actions/setup-r-dependencies@d3c5be51b12e724e68f33216ca3c148b66d5f0b6 # v2.12.1
         with:
           extra-packages: any::rcmdcheck, any::covr