diff --git a/DESCRIPTION b/DESCRIPTION
index 5c86e2fb..b41d8a9b 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -36,5 +36,6 @@ Imports:
     rlang,
     tibble,
     utils,
-    haven
+    haven,
+    shinyWidgets
 VignetteBuilder: knitr
diff --git a/NAMESPACE b/NAMESPACE
index 0f21478b..3acbd77b 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -26,6 +26,7 @@ importFrom(purrr,map_lgl)
 importFrom(rlang,.data)
 importFrom(rlang,parse_expr)
 importFrom(shiny,runApp)
+importFrom(shinyWidgets,materialSwitch)
 importFrom(stringr,str_detect)
 importFrom(stringr,str_split)
 importFrom(stringr,str_subset)
diff --git a/R/safetyGraphicsApp.R b/R/safetyGraphicsApp.R
index 7cd9301a..3190583c 100644
--- a/R/safetyGraphicsApp.R
+++ b/R/safetyGraphicsApp.R
@@ -10,6 +10,7 @@
 #' @importFrom magrittr "%>%"
 #' @import rmarkdown 
 #' @importFrom haven read_sas
+#' @importFrom shinyWidgets materialSwitch
 #'
 #' @export
 #'