diff --git a/extensions/quarto-extensions.csv b/extensions/quarto-extensions.csv
index 7bc25cd..f7be8c3 100644
--- a/extensions/quarto-extensions.csv
+++ b/extensions/quarto-extensions.csv
@@ -141,3 +141,4 @@ formats,gl-eb/minimal-doc
 shortcodes-filters,gadenbuie/quarto-now
 shortcodes-filters,coatless-quarto/embedio
 shortcodes-filters,gadenbuie/countdown
+shortcodes-filters,gadenbuie/revealjs-text-resizer