diff --git a/vignettes/DeconvoBuddies.Rmd b/vignettes/DeconvoBuddies.Rmd
index 90529c9..6aa8a28 100644
--- a/vignettes/DeconvoBuddies.Rmd
+++ b/vignettes/DeconvoBuddies.Rmd
@@ -294,8 +294,11 @@ group of samples. In this example data, the `RNum` is a sample (donor)
 identifier and `Dx` is a group variable for the diagnosis status of the donors.
 
 ```{r `demo plot_composition_bar`}
-# access the colData of a test rse dataset
+# load example data
 data("rse_bulk_test")
+data("est_prop")
+
+# access the colData of a test rse dataset
 pd <- colData(rse_bulk_test) |>
     as.data.frame()
 
diff --git a/vignettes/Deconvolution_Benchmark_DLPFC.Rmd b/vignettes/Deconvolution_Benchmark_DLPFC.Rmd
index bca8d78..1794121 100644
--- a/vignettes/Deconvolution_Benchmark_DLPFC.Rmd
+++ b/vignettes/Deconvolution_Benchmark_DLPFC.Rmd
@@ -252,7 +252,7 @@ Key columns in `RNAScope_prop`:
 ```{r "access RNAScope proportions"}
 # Access the RNAScope proportion data.frame
 data("RNAScope_prop")
-head(DeconvoBuddies::RNAScope_prop)
+head(RNAScope_prop)
 
 ## plot the RNAScope compositions
 plot_composition_bar(