diff --git a/.Rbuildignore b/.Rbuildignore
index 5cb30a8..1025e64 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -1,3 +1,5 @@
+^renv$
+^renv\.lock$
 ^.*\.Rproj$
 ^\.Rproj\.user$
 ^LICENSE\.md$
diff --git a/DESCRIPTION b/DESCRIPTION
index ddff400..5927447 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -35,10 +35,11 @@ Imports:
     tidyr,
     units
 Suggests: 
+    bold (>= 1.3.0),
     knitr,
     rmarkdown,
     rnaturalearthdata,
-    taxize,
+    taxize (>= 0.9.99),
     testthat (>= 3.0.0)
 Config/testthat/edition: 3
 Encoding: UTF-8
@@ -47,4 +48,6 @@ Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.3.1
 VignetteBuilder: knitr, rmarkdown
 Remotes:  
-    hrbrmstr/mgrs
+    github::hrbrmstr/mgrs,
+    github::ropensci/bold,
+    github::ropensci/taxize,
diff --git a/R/check_cell_size.R b/R/check_cell_size.R
index bb0d5fe..52e4ab7 100644
--- a/R/check_cell_size.R
+++ b/R/check_cell_size.R
@@ -13,8 +13,7 @@ check_cell_size <- function(cell_size, cell_size_units, resolution, level) {
 
         res_size <- as.numeric(stringr::str_extract(resolution, "[0-9]*(?=km)"))
 
-        if ((res_size < cell_size) |
-            as.integer(cell_size / res_size)==(cell_size / res_size)) {
+        if (res_size %% cell_size != 0) {
 
           stop("cell_size must be a whole number multiple of the resolution.
                For example, if resolution is 1 km, cell_size can be 1, 2, 3,.. 10,.. 100, etc.")
@@ -33,8 +32,7 @@ check_cell_size <- function(cell_size, cell_size_units, resolution, level) {
 
         res_size <- as.numeric(stringr::str_extract(resolution, "[0-9,.]*(?=degrees)"))
 
-        if (!(res_size <= cell_size) |
-            !as.integer(cell_size / res_size)==(cell_size / res_size)) {
+        if (res_size %% cell_size != 0) {
 
           stop("cell_size must be a whole number multiple of the resolution.
                For example, if resolution is 0.25 degrees, cell_size can be 0.25, 0.5, 0.75, 1, etc.")
diff --git a/man/b3gbi-package.Rd b/man/b3gbi-package.Rd
index 4c917b6..27aceef 100644
--- a/man/b3gbi-package.Rd
+++ b/man/b3gbi-package.Rd
@@ -15,6 +15,7 @@ Useful links:
 \itemize{
   \item \url{https://github.com/b-cubed-eu/b3gbi}
   \item \url{https://b-cubed-eu.github.io/b3gbi/}
+  \item Report bugs at \url{https://github.com/b-cubed-eu/b3gbi/issues}
 }
 
 }