diff --git a/inventory.ini b/inventory.ini
index eb379947a..5378e3695 100644
--- a/inventory.ini
+++ b/inventory.ini
@@ -63,7 +63,7 @@ ansible_user = tidb
 
 cluster_name = test-cluster
 
-tidb_version = v2.1.14
+tidb_version = v2.1.15
 
 # process supervision, [systemd, supervise]
 process_supervision = systemd