diff --git a/DESCRIPTION b/DESCRIPTION
index dbe2846..350468c 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: StabMap
 Type: Package
 Title: Stabilised mosaic single cell data integration using unshared features
-Version: 0.99.4
+Version: 0.99.5
 Authors@R: c(
     person("Shila", "Ghazanfar", , "shazanfar@gmail.com", role = c("aut", "cre", "ctb")),
     person("Aiden", "Jin", role = "ctb"),
@@ -45,8 +45,9 @@ Suggests:
     BiocStyle,
     magrittr,
     testthat (>= 3.0.0),
-    purrr
+    purrr,
+    sparseMatrixStats
 LazyData: false
-RoxygenNote: 7.3.1
+RoxygenNote: 7.3.2
 VignetteBuilder: knitr
 Config/testthat/edition: 3
diff --git a/NAMESPACE b/NAMESPACE
index ccad8d7..968652c 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -13,5 +13,6 @@ importFrom(BiocParallel,SerialParam)
 importFrom(BiocParallel,bpstart)
 importFrom(BiocParallel,bpstop)
 importFrom(MatrixGenerics,rowMaxs)
+importFrom(MatrixGenerics,rowVars)
 importFrom(MatrixGenerics,rowWeightedVars)
 importFrom(SummarizedExperiment,assay)
diff --git a/R/stabMap.R b/R/stabMap.R
index 9966c5e..1cd38ed 100644
--- a/R/stabMap.R
+++ b/R/stabMap.R
@@ -79,7 +79,7 @@
 #'
 #' head(out)
 #'
-#' @importFrom MatrixGenerics rowMaxs rowWeightedVars
+#' @importFrom MatrixGenerics rowMaxs rowWeightedVars rowVars
 #' @importFrom BiocParallel SerialParam bpstart bpstop
 #' @export
 stabMap <- function(assay_list,