diff --git a/vignettes/visiumStitched.Rmd b/vignettes/visiumStitched.Rmd
index aaebcc5..d411bec 100644
--- a/vignettes/visiumStitched.Rmd
+++ b/vignettes/visiumStitched.Rmd
@@ -187,7 +187,7 @@ memory footprints.
 ```{r "prep_fiji"}
 spe_input_dir <- tempdir()
 prep_fiji_coords(sample_info, out_dir = spe_input_dir)
-prep_fiji_image(sample_info, out_dir = spe_input_dir)
+prep_fiji_image(sample_info, out_dir = spe_input_dir, lowres_max_size = 400)
 ```
 
 ## Constructing the Object