diff --git a/test/Makefile b/test/Makefile
index 0e04239d1..ae58e2c95 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -76,7 +76,7 @@ HAS_VSPHERE_PLUGIN ?= false
 RESTORE_HELPER_IMAGE ?=
 
 #Released version only
-UPGRADE_FROM_VELERO_VERSION ?= v1.16.2,v1.17.2
+UPGRADE_FROM_VELERO_VERSION ?= v1.15.2,v1.16.2,v1.17.2
 
 # UPGRADE_FROM_VELERO_CLI can has the same format(a list divided by comma) with UPGRADE_FROM_VELERO_VERSION
 # Upgrade tests will be executed sequently according to the list by UPGRADE_FROM_VELERO_VERSION