diff --git a/NAMESPACE b/NAMESPACE
index 5937475..13d3791 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -62,3 +62,4 @@ importFrom(lifecycle,deprecated)
 importFrom(scales,percent)
 importFrom(stats,weighted.mean)
 importFrom(stats,weights)
+importFrom(utils,modifyList)
diff --git a/R/hex_bw.R b/R/hex_bw.R
index 76da317..eef6d78 100644
--- a/R/hex_bw.R
+++ b/R/hex_bw.R
@@ -7,7 +7,7 @@
 #' @param hex_code Background color in hex-format.
 #' @return Either black or white, in hex-format
 #' @source Adapted from `saros` for `hex_code()` and from
-#' [https://github.com/teunbrand/ggplot_tricks?tab=readme-ov-file#text-contrast]
+#' <https://github.com/teunbrand/ggplot_tricks?tab=readme-ov-file#text-contrast>
 #' for `auto_contrast`.
 #' @export
 #' @examples
diff --git a/R/stat_prop.R b/R/stat_prop.R
index ae02d1f..c9565d5 100644
--- a/R/stat_prop.R
+++ b/R/stat_prop.R
@@ -275,6 +275,7 @@ geom_prop_text <- function(mapping = ggplot2::aes(!!!auto_contrast),
 }
 
 # all defaults to after_stat(prop)
+#' @importFrom utils modifyList
 StatPropProp <- ggplot2::ggproto(
   "StatPropProp",
   StatProp,
diff --git a/man/hex_bw.Rd b/man/hex_bw.Rd
index 26b1244..b8e0062 100644
--- a/man/hex_bw.Rd
+++ b/man/hex_bw.Rd
@@ -11,7 +11,7 @@ An object of class \code{uneval} of length 1.
 }
 \source{
 Adapted from \code{saros} for \code{hex_code()} and from
-\link{https://github.com/teunbrand/ggplot_tricks?tab=readme-ov-file#text-contrast}
+\url{https://github.com/teunbrand/ggplot_tricks?tab=readme-ov-file#text-contrast}
 for \code{auto_contrast}.
 }
 \usage{