diff --git a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/makefile b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/makefile
index 51dc5b8..b18d2d2 100644
--- a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/makefile
+++ b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/makefile
@@ -8,7 +8,8 @@
 	go fmt $(GOFILES_NOVENDOR)
 
 vet:
-	go vet $(GOFILES_NOVENDOR)
+	# do not check lostcancel, they are intentional.
+	go vet -lostcancel=false $(GOFILES_NOVENDOR)
 
 test: vet
 	./scripts/test_all.sh