diff --git a/README b/README
index 4cc9784..90f12ea 100644
--- a/README
+++ b/README
@@ -17,19 +17,20 @@ Services.
 Requirements
 =============
 
-Because this document uses OpenType and TrueType fonts, it requires
-XeTeX rather than standard LaTeX. It is supported by Overleaf
-(https://overleaf.com/) although it is not the default. More details
-on XeTeX are available here: https://tug.org/xetex/
+Because this document uses OpenType and TrueType fonts and produces
+tagged, accessible PDF/UA-2 output, it requires LuaLaTeX rather than
+standard LaTeX. It is supported by Overleaf (https://overleaf.com/)
+although it is not the default. More details on LuaTeX are available
+here: https://www.luatex.org/
 
 On Debian or Ubuntu, install the following packages:
 
 * latexmk
-* texlive-xetex
+* texlive-luatex
 * texlive-latex-recommended
 * texlive-latex-extra
 
-  apt install latexmk texlive-xetex texlive-latex-recommended \
+  apt install latexmk texlive-luatex texlive-latex-recommended \
   texlive-latex-extra
 
 On other systems, installing a full TeX Live distribution should