diff --git a/scripts/slides_to_html.sh b/scripts/slides_to_html.sh
index 4e20d7c..5b14cd2 100755
--- a/scripts/slides_to_html.sh
+++ b/scripts/slides_to_html.sh
@@ -9,7 +9,7 @@ for filename in  $*
 do
   echo compiling $filename
   file_out=`echo $filename | sed -e 's/\.md/\.html/g'`
-  sed -e "s|SLIDEHEAD|$headEscapedForSed|g" $filename | pandoc -s --mathjax -t revealjs -o html/$file_out --slide-level=$SLIDE_LEVEL --highlight-style=$HIGHLIGHT_STYLE -V revealjs-url=https://unpkg.com/reveal.js@5.0.0 --template=./templates/template.revealjs
+  sed -e "s|SLIDEHEAD|$headEscapedForSed|g" $filename | pandoc -s --mathjax -t revealjs -o html/$file_out --slide-level=$SLIDE_LEVEL --highlight-style=$HIGHLIGHT_STYLE -V revealjs-url=https://unpkg.com/reveal.js@5.2.0 --template=./templates/template.revealjs
   echo output $file_out
 
 done