diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4529f42..c5ec981 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -34,6 +34,7 @@ jobs:
         extra_fonts: |
           ../fonts/DoulosSIL-Regular.ttf
           ../fonts/NotoSansKR-Regular.ttf
+          ../fonts/cmunbx.ttf
           ../fonts/cmunrm.ttf
     - name: Archive code coverage results
       uses: actions/upload-artifact@v4
diff --git a/fonts/cmunbx.ttf b/fonts/cmunbx.ttf
new file mode 100644
index 0000000..2c7198e
Binary files /dev/null and b/fonts/cmunbx.ttf differ