diff --git a/.Rbuildignore b/.Rbuildignore
index eb3b612..133119f 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -1,13 +1,12 @@
-vignettes/tables.aux
-vignettes/tables.bbl
-vignettes/tables.blg
-vignettes/tables.log
-vignettes/tables.out
-vignettes/tables.pdf
-vignettes/tables.synctex
-vignettes/tables.tex
-vignettes/tables.toc
-vignettes/tables-concordance.tex
+vignettes/.*aux$
+vignettes/.*bbl$
+vignettes/.*blg$
+vignettes/.*log$
+vignettes/.*out$
+vignettes/.*synctex$
+vignettes/.*tex$
+vignettes/.*toc$
+vignettes/.*pdf$
 ^.*\.Rproj$
 ^\.Rproj\.user$
 ^cran-comments\.md$
diff --git a/.gitignore b/.gitignore
index 9168bf8..d297cf4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 .httr-oauth
 .DS_Store
 docs
+CRAN-SUBMISSION
diff --git a/DESCRIPTION b/DESCRIPTION
index d17e341..4ba63f6 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -14,7 +14,7 @@ Depends: R (>= 2.12.0)
 Imports: stats, utils, knitr, htmltools
 Suggests: magrittr, kableExtra (>= 0.9.0), Hmisc, bookdown, rmarkdown,
           pkgdown, formatters, tinytable (>= 0.0.5)
-VignetteBuilder: rmarkdown
+VignetteBuilder: knitr, rmarkdown
 URL: https://dmurdoch.github.io/tables/
 BugReports: https://github.com/dmurdoch/tables/issues
 SystemRequirements: pandoc (>= 1.12.3) for vignettes
diff --git a/cran-comments.md b/cran-comments.md
index 79877f8..7e20855 100644
--- a/cran-comments.md
+++ b/cran-comments.md
@@ -1,9 +1,5 @@
-# tables 0.9.31
+# tables 0.9.33
 
-Switch to `Authors@R`.
-
-# tables 0.9.30
-
-A small bug fix release.
-
-There are no issues reported on CRAN about the previous version.
+This is a small update.  It checks okay in R 4.5.2.  I'm 
+unable to install the suggested package pkgdown in R-devel,
+so I haven't run the checks there.
diff --git a/vignettes/tables.Rnw b/vignettes/tables.Rnw
index 6710c04..db8190e 100644
--- a/vignettes/tables.Rnw
+++ b/vignettes/tables.Rnw
@@ -1152,7 +1152,9 @@ done.  Those functions have a \code{texify} argument that can be set to \code{TR
 to enable this behaviour (e.g. if the label is not meant to be processed by \LaTeX).  For example,
 with the definition
 <<>>=
-df <- data.frame(A = factor(c( "$", "\\" ) ), B_label=1:2)
+df <- data.frame(A = factor(c( "$", "\\" ), 
+                            levels = c( "$", "\\" ) ),
+                 B_label = 1:2)
 @
 the code
 <<eval=FALSE>>=
diff --git a/vignettes/tables.Rout.save b/vignettes/tables.Rout.save
index f2bf091..a57b331 100644
--- a/vignettes/tables.Rout.save
+++ b/vignettes/tables.Rout.save
@@ -778,7 +778,8 @@ $i$  & Sepal.Length & Sepal.Width & Petal.Length & Petal.Width & \multicolumn{1}
 \bottomrule 
 \end{tabular}
 
-> df <- data.frame(A = factor(c("$", "\\")), B_label = 1:2)
+> df <- data.frame(A = factor(c("$", "\\"), levels = c("$", 
++     "\\")), B_label = 1:2)
 
 > options(tables.texify = TRUE)