diff --git a/blog-backend/Makefile b/blog-backend/Makefile
index f00e1df2..fd3d89dc 100644
--- a/blog-backend/Makefile
+++ b/blog-backend/Makefile
@@ -34,13 +34,12 @@ ent:
 
 # generate protobuf api go code
 api:
-	cd $(lastword $(dir $(realpath $(SRCS_MK))));\
-	make api;
+	buf generate
 
 # generate OpenAPI v3 docs.
 openapi:
-	cd $(lastword $(dir $(realpath $(SRCS_MK))));\
-	make openapi;
+	buf generate --path api/admin/service/v1 --template api/admin/service/v1/buf.openapi.gen.yaml
+	buf generate --path api/front/service/v1 --template api/front/service/v1/buf.openapi.gen.yaml
 
 # initialize develop environment
 init: