diff --git a/astrocyte_pkg.yml b/astrocyte_pkg.yml
index 49e81c72b209bc56e665924dcb4d05dd18643053..e96cb4e5a55717bed78238ee74c712b4f27826ac 100755
--- a/astrocyte_pkg.yml
+++ b/astrocyte_pkg.yml
@@ -137,7 +137,7 @@ workflow_parameters:
       - [ 'two', '2']
     required: true
     description: |
-      10x single cell gene expression chemistry version (only used in cellranger version 2.x).
+      10x single cell gene expression chemistry version (only used in cellranger version 3.x).
 
   - id: version
     type: select