diff --git a/DESCRIPTION b/DESCRIPTION
index 46bdb45..4d61f6a 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -25,6 +25,11 @@ Suggests:
     rmarkdown,
     knitr,
     testthat (>= 3.0.0),
+    splines,
+    dplyr,
+    tidyr,
+    DT,
+    EnWAS,
     survey
 VignetteBuilder: knitr
 Config/testthat/edition: 3
diff --git a/vignettes/cobalt_paper.Rmd b/vignettes/cobalt_paper.Rmd
index 0f754eb..e4f756f 100644
--- a/vignettes/cobalt_paper.Rmd
+++ b/vignettes/cobalt_paper.Rmd
@@ -3,7 +3,11 @@ layout: default
 title: "A vignette that outlines a strategy to replicate a published analysis"
 author: Laha Ale, Robert Gentleman
 date: "Updated on : `r date()`"
-output: html_document
+# output: html_document
+vignette: >
+  %\VignetteIndexEntry{Quick Start}
+  %\VignetteEngine{knitr::rmarkdown}
+  %\VignetteEncoding{UTF-8}
 ---
 ```{r, include = FALSE}
 knitr::opts_chunk$set(
diff --git a/vignettes/survey_weights_tutorial.rmd b/vignettes/survey_weights_tutorial.rmd
index cba8d39..a7593da 100644
--- a/vignettes/survey_weights_tutorial.rmd
+++ b/vignettes/survey_weights_tutorial.rmd
@@ -1,7 +1,11 @@
 ---
 layout: default
 title: "Incorporating Survey Weights into NHANES Analysis using R"
-output: html_document
+# output: html_document
+vignette: >
+  %\VignetteIndexEntry{Quick Start}
+  %\VignetteEngine{knitr::rmarkdown}
+  %\VignetteEncoding{UTF-8}
 ---
   
 ## Introduction