diff --git a/DESCRIPTION b/DESCRIPTION
index a95b2b05..ad66f27f 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -79,7 +79,8 @@ Imports:
     statmod,
     MatrixGenerics,
     rlang,
-    dplyr
+    dplyr,
+    ComplexHeatmap
 RoxygenNote: 7.3.2
 Roxygen: list(markdown = TRUE)
 URL: https://github.com/LieberInstitute/spatialLIBD
diff --git a/NAMESPACE b/NAMESPACE
index 946c57f9..3fb849d5 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -57,6 +57,9 @@ import(plotly, except = last_plot)
 import(shiny)
 importFrom(AnnotationHub,query)
 importFrom(BiocGenerics,which)
+importFrom(ComplexHeatmap,Heatmap)
+importFrom(ComplexHeatmap,columnAnnotation)
+importFrom(ComplexHeatmap,rowAnnotation)
 importFrom(DT,DTOutput)
 importFrom(DT,renderDT)
 importFrom(GenomicRanges,seqnames)