diff --git a/Makefile b/Makefile
index 9de6837df..347c6f097 100644
--- a/Makefile
+++ b/Makefile
@@ -57,12 +57,12 @@ install-errcheck:
 	which errcheck || GO111MODULE=off go get -u github.com/kisielk/errcheck
 
 test:
-	GO111MODULE=on go test ./lib/...
-	GO111MODULE=on go test ./app/...
+	GO111MODULE=on go test -mod=vendor ./lib/...
+	GO111MODULE=on go test -mod=vendor ./app/...
 
 benchmark:
-	GO111MODULE=on go test -bench=. ./lib/...
-	GO111MODULE=on go test -bench=. ./app/...
+	GO111MODULE=on go test -mod=vendor -bench=. ./lib/...
+	GO111MODULE=on go test -mod=vendor -bench=. ./app/...
 
 vendor-update:
 	GO111MODULE=on go get -u ./lib/...