diff --git a/Makefile b/Makefile
index 65f2212..b39fe99 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,13 @@
 GOBIN=$(shell pwd)/bin
 
 install-lint:
-	@curl -sSfL -q https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOBIN) v1.42.0
+	@if [ ! -f "$(GOBIN)/golangci-lint" ]; then \
+		curl -sSfL -q https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOBIN) v1.42.0; \
+	fi
 
 lint: install-lint
 	@echo "golangci-lint run ../..."
 	@$(GOBIN)/golangci-lint run ./...
+
+test:
+	go test -race -failfast ./...