diff --git a/inst/extdata/chr17.mcool b/inst/extdata/chr17.mcool
deleted file mode 100644
index 4704d15..0000000
Binary files a/inst/extdata/chr17.mcool and /dev/null differ
diff --git a/inst/pages/topological-features.qmd b/inst/pages/topological-features.qmd
index 64edc8f..ffe4404 100644
--- a/inst/pages/topological-features.qmd
+++ b/inst/pages/topological-features.qmd
@@ -39,13 +39,13 @@ into active euchromatin (A compartments) and regulated heterochromatin
 
 To investigate chromosome compartments, we will fetch a contact matrix generated 
 from a micro-C experiment (from @Krietenstein_2020). A subset of the genome-wide
-dataset is provided in the `OHCA` package. It contains intra-chromosomal 
+dataset is provided in the `HiContactsData` package. It contains intra-chromosomal 
 interactions within `chr17`, binned at `5000`, `100000` and `250000` bp. 
 
 ```{r}
 library(HiCExperiment)
-library(OHCA)
-cf <- fs::path_package('OHCA', 'extdata', 'chr17.mcool')
+library(HiContactsData)
+cf <- HiContactsData('microC', 'mcool')
 microC <- import(cf, resolution = 250000)
 microC
 
diff --git a/inst/scripts/make_extdata.sh b/inst/scripts/make_extdata.sh
deleted file mode 100644
index 8472d17..0000000
--- a/inst/scripts/make_extdata.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-cooler dump -t chroms /home/rsg/.cache/R/fourDNData/4d434d8538a0_4DNFI9FVHJZQ.mcool::/resolutions/250000 | grep -P 'chr17\t' > inst/extdata/chromsizes
-cooler dump -t pixels -r chr17 --join /home/rsg/.cache/R/fourDNData/4d434d8538a0_4DNFI9FVHJZQ.mcool::/resolutions/5000 > inst/extdata/chr17_5000.bg2
-cooler cload pairs inst/extdata/chromsizes:5000 inst/extdata/chr17_5000.bg2 -c1 1 -p1 2 -c2 4 -p2 5 -0 inst/extdata/chr17.cool
-cooler zoomify --resolutions 5000,100000,250000 --balance inst/extdata/chr17.cool -o inst/extdata/chr17.mcool