diff --git a/core/instance_conversion.go b/core/instance_conversion.go
index ffb13061..5bb0be02 100644
--- a/core/instance_conversion.go
+++ b/core/instance_conversion.go
@@ -27,6 +27,7 @@ var unsupportedIO2Regions = [...]string{
 	"af-south-1",
 	"eu-west-3",
 	"ap-northeast-3",
+	"ap-southeast-3",
 }
 
 func (i *instance) getPriceToBid(