diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8aff2be..a297aca 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -38,7 +38,7 @@ jobs:
           ls
           pwd
           sudo apt-get -y update
-          sudo apt-get --no-install-recommends -y install latexmk
+          sudo apt-get --no-install-recommends -y install latexmk texlive-latex-extra
       - name: compile tex
         run: |
           pdflatex -halt-on-error -interaction=nonstopmode notes.tex