diff --git a/Makefile b/Makefile
index f967ab8..9473f55 100644
--- a/Makefile
+++ b/Makefile
@@ -2,8 +2,9 @@ NODE_ALPINE_IMAGE ?= node:lts-alpine3.20
 SERVERLESS_VERSION = 3.39.0
 INTERNAL_VERSION = 1.0.0
 # SERVERLESS_VERSION ?= $(shell docker run --rm $(NODE_ALPINE_IMAGE) npm show serverless version)
+TIMESTAMP = $(shell date +%y%m%d%H%M)  # Timestamp in YYMMDDHHMM format
 IMAGE_NAME ?= amaysim/serverless
-IMAGE = $(IMAGE_NAME):$(SERVERLESS_VERSION)-$(INTERNAL_VERSION)
+IMAGE = $(IMAGE_NAME):$(SERVERLESS_VERSION)-$(INTERNAL_VERSION)-$(TIMESTAMP)
 ROOT_DIR = $(dir $(abspath $(firstword $(MAKEFILE_LIST))))
 
 ciTest: deps info build buildMultiArch clean