diff --git a/Makefile b/Makefile
index 35884fa..fcea8bd 100644
--- a/Makefile
+++ b/Makefile
@@ -14,6 +14,7 @@ build:
 	CGO_ENABLED=0 go build -v -o bin/fake-smtp ./cmd/fake-smtp
 
 docker-image:
+	git tag -a $(MKT_PROJECT_VERSION) -m "v$(MKT_PROJECT_VERSION)" || exit 0
 	docker build \
 		--build-arg HTTP_PROXY=$(HTTP_PROXY) \
 		--build-arg HTTPS_PROXY=$(HTTPS_PROXY) \