diff --git a/vendor/go.uber.org/zap/Makefile b/vendor/go.uber.org/zap/Makefile
index 073e9aa..9b1bc3b 100644
--- a/vendor/go.uber.org/zap/Makefile
+++ b/vendor/go.uber.org/zap/Makefile
@@ -1,76 +1,73 @@
-export GO15VENDOREXPERIMENT=1
+export GOBIN ?= $(shell pwd)/bin
 
+GOLINT = $(GOBIN)/golint
+STATICCHECK = $(GOBIN)/staticcheck
 BENCH_FLAGS ?= -cpuprofile=cpu.pprof -memprofile=mem.pprof -benchmem
-PKGS ?= $(shell glide novendor)
+
+# Directories containing independent Go modules.
+#
+# We track coverage only for the main module.
+MODULE_DIRS = . ./benchmarks ./zapgrpc/internal/test
+
 # Many Go tools take file globs or directories as arguments instead of packages.
-PKG_FILES ?= *.go zapcore benchmarks buffer zapgrpc zaptest zaptest/observer internal/bufferpool internal/exit internal/color internal/ztest
-
-# The linting tools evolve with each Go version, so run them only on the latest
-# stable release.
-GO_VERSION := $(shell go version | cut -d " " -f 3)
-GO_MINOR_VERSION := $(word 2,$(subst ., ,$(GO_VERSION)))
-LINTABLE_MINOR_VERSIONS := 12
-ifneq ($(filter $(LINTABLE_MINOR_VERSIONS),$(GO_MINOR_VERSION)),)
-SHOULD_LINT := true
-endif
-
+GO_FILES := $(shell \
+	find . '(' -path '*/.*' -o -path './vendor' ')' -prune \
+	-o -name '*.go' -print | cut -b3-)
 
 .PHONY: all
 all: lint test
 
-.PHONY: dependencies
-dependencies:
-	@echo "Installing Glide and locked dependencies..."
-	glide --version || go get -u -f github.com/Masterminds/glide
-	glide install
-	@echo "Installing test dependencies..."
-	go install ./vendor/github.com/axw/gocov/gocov
-	go install ./vendor/github.com/mattn/goveralls
-ifdef SHOULD_LINT
-	@echo "Installing golint..."
-	go install ./vendor/github.com/golang/lint/golint
-else
-	@echo "Not installing golint, since we don't expect to lint on" $(GO_VERSION)
-endif
-
-# Disable printf-like invocation checking due to testify.assert.Error()
-VET_RULES := -printf=false
-
 .PHONY: lint
-lint:
-ifdef SHOULD_LINT
+lint: $(GOLINT) $(STATICCHECK)
 	@rm -rf lint.log
 	@echo "Checking formatting..."
-	@gofmt -d -s $(PKG_FILES) 2>&1 | tee lint.log
-	@echo "Installing test dependencies for vet..."
-	@go test -i $(PKGS)
+	@gofmt -d -s $(GO_FILES) 2>&1 | tee lint.log
 	@echo "Checking vet..."
-	@go vet $(VET_RULES) $(PKGS) 2>&1 | tee -a lint.log
+	@$(foreach dir,$(MODULE_DIRS),(cd $(dir) && go vet ./... 2>&1) &&) true | tee -a lint.log
 	@echo "Checking lint..."
-	@$(foreach dir,$(PKGS),golint $(dir) 2>&1 | tee -a lint.log;)
+	@$(foreach dir,$(MODULE_DIRS),(cd $(dir) && $(GOLINT) ./... 2>&1) &&) true | tee -a lint.log
+	@echo "Checking staticcheck..."
+	@$(foreach dir,$(MODULE_DIRS),(cd $(dir) && $(STATICCHECK) ./... 2>&1) &&) true | tee -a lint.log
 	@echo "Checking for unresolved FIXMEs..."
-	@git grep -i fixme | grep -v -e vendor -e Makefile | tee -a lint.log
+	@git grep -i fixme | grep -v -e Makefile | tee -a lint.log
 	@echo "Checking for license headers..."
-	@./check_license.sh | tee -a lint.log
+	@./checklicense.sh | tee -a lint.log
 	@[ ! -s lint.log ]
-else
-	@echo "Skipping linters on" $(GO_VERSION)
-endif
+	@echo "Checking 'go mod tidy'..."
+	@make tidy
+	@if ! git diff --quiet; then \
+		echo "'go mod tidy' resulted in changes or working tree is dirty:"; \
+		git --no-pager diff; \
+	fi
+
+$(GOLINT):
+	cd tools && go install golang.org/x/lint/golint
+
+$(STATICCHECK):
+	cd tools && go install honnef.co/go/tools/cmd/staticcheck
 
 .PHONY: test
 test:
-	go test -race $(PKGS)
+	@$(foreach dir,$(MODULE_DIRS),(cd $(dir) && go test -race ./...) &&) true
 
 .PHONY: cover
 cover:
-	./scripts/cover.sh $(PKGS)
+	go test -race -coverprofile=cover.out -coverpkg=./... ./...
+	go tool cover -html=cover.out -o cover.html
 
 .PHONY: bench
 BENCH ?= .
 bench:
-	@$(foreach pkg,$(PKGS),go test -bench=$(BENCH) -run="^$$" $(BENCH_FLAGS) $(pkg);)
+	@$(foreach dir,$(MODULE_DIRS), ( \
+		cd $(dir) && \
+		go list ./... | xargs -n1 go test -bench=$(BENCH) -run="^$$" $(BENCH_FLAGS) \
+	) &&) true
 
 .PHONY: updatereadme
 updatereadme:
 	rm -f README.md
 	cat .readme.tmpl | go run internal/readme/readme.go > README.md
+
+.PHONY: tidy
+tidy:
+	@$(foreach dir,$(MODULE_DIRS),(cd $(dir) && go mod tidy) &&) true