diff --git a/episodes/introduction.Rmd b/episodes/introduction.Rmd
index c491819..8cc9dc2 100644
--- a/episodes/introduction.Rmd
+++ b/episodes/introduction.Rmd
@@ -19,6 +19,7 @@ exercises: 2
 
 ```{r}
 library("SummarizedExperiment")
+library("SingleCellExperiment")
 ```
 
 ## Introduction