diff --git a/R/datasets.R b/R/datasets.R
index 19280c8..875a0d5 100644
--- a/R/datasets.R
+++ b/R/datasets.R
@@ -48,7 +48,7 @@ choose_malevnc_dataset <- function(dataset=NULL,
       ops=list(
         malevnc.dataset=dataset,
         malevnc.neuprint='https://neuprint.janelia.org',
-        malevnc.neuprint_dataset="manc:v1.0",
+        malevnc.neuprint_dataset="manc:v1.2.1",
         malevnc.rootnode=NULL,
         malevnc.server="https://manc-dvid.janelia.org",
         malevnc.rootnode='1ec355123bf94e588557a4568d26d258'