diff --git a/Makefile b/Makefile
index e7fea1a8..d6264b81 100644
--- a/Makefile
+++ b/Makefile
@@ -38,13 +38,6 @@ endif
 export CONTAINER_RUNTIME ?= $(if $(shell command -v podman ;),podman,docker)
 GOMD2MAN ?= $(if $(shell command -v go-md2man ;),go-md2man,$(GOBIN)/go-md2man)
 
-# Go module support: set `-mod=vendor` to use the vendored sources.
-# See also hack/make.sh.
-ifeq ($(shell go help mod >/dev/null 2>&1 && echo true), true)
-  GO:=GO111MODULE=on $(GO)
-  MOD_VENDOR=-mod=vendor
-endif
-
 ifeq ($(DEBUG), 1)
   override GOGCFLAGS += -N -l
 endif
@@ -133,9 +126,9 @@ binary: cmd/skopeo
 # Build w/o using containers
 .PHONY: bin/skopeo
 bin/skopeo:
-	$(GO) build $(MOD_VENDOR) ${GO_DYN_FLAGS} ${SKOPEO_LDFLAGS} -gcflags "$(GOGCFLAGS)" -tags "$(BUILDTAGS)" -o $@ ./cmd/skopeo
+	$(GO) build ${GO_DYN_FLAGS} ${SKOPEO_LDFLAGS} -gcflags "$(GOGCFLAGS)" -tags "$(BUILDTAGS)" -o $@ ./cmd/skopeo
 bin/skopeo.%:
-	GOOS=$(word 2,$(subst ., ,$@)) GOARCH=$(word 3,$(subst ., ,$@)) $(GO) build $(MOD_VENDOR) ${SKOPEO_LDFLAGS} -tags "containers_image_openpgp $(BUILDTAGS)" -o $@ ./cmd/skopeo
+	GOOS=$(word 2,$(subst ., ,$@)) GOARCH=$(word 3,$(subst ., ,$@)) $(GO) build ${SKOPEO_LDFLAGS} -tags "containers_image_openpgp $(BUILDTAGS)" -o $@ ./cmd/skopeo
 local-cross: bin/skopeo.darwin.amd64 bin/skopeo.linux.arm bin/skopeo.linux.arm64 bin/skopeo.windows.386.exe bin/skopeo.windows.amd64.exe
 
 $(MANPAGES): %: %.md
@@ -239,7 +232,7 @@ validate-docs: bin/skopeo
 	hack/xref-helpmsgs-manpages
 
 test-unit-local:
-	$(GO) test $(MOD_VENDOR) -tags "$(BUILDTAGS)" $$($(GO) list $(MOD_VENDOR) -tags "$(BUILDTAGS)" -e ./... | grep -v '^github\.com/containers/skopeo/\(integration\|vendor/.*\)$$')
+	$(GO) test -tags "$(BUILDTAGS)" $$($(GO) list -tags "$(BUILDTAGS)" -e ./... | grep -v '^github\.com/containers/skopeo/\(integration\|vendor/.*\)$$')
 
 vendor:
 	$(GO) mod tidy
diff --git a/hack/make.sh b/hack/make.sh
index 83ed2ffc..7046810b 100755
--- a/hack/make.sh
+++ b/hack/make.sh
@@ -38,21 +38,12 @@ fi
 
 echo
 
-
-# Go module support: set `-mod=vendor` to use the vendored sources
-# See also the top-level Makefile.
-mod_vendor=
-if go help mod >/dev/null 2>&1; then
-  export GO111MODULE=on
-  mod_vendor='-mod=vendor'
-fi
-
 go_test_dir() {
 	dir=$1
 	(
-		echo '+ go test' $mod_vendor $TESTFLAGS ${BUILDTAGS:+-tags "$BUILDTAGS"} "${SKOPEO_PKG}${dir#.}"
+		echo '+ go test' $TESTFLAGS ${BUILDTAGS:+-tags "$BUILDTAGS"} "${SKOPEO_PKG}${dir#.}"
 		cd "$dir"
-		go test $mod_vendor $TESTFLAGS ${BUILDTAGS:+-tags "$BUILDTAGS"}
+		go test $TESTFLAGS ${BUILDTAGS:+-tags "$BUILDTAGS"}
 	)
 }
 
diff --git a/hack/make/validate-vet b/hack/make/validate-vet
index 17e5980c..6a66cd68 100755
--- a/hack/make/validate-vet
+++ b/hack/make/validate-vet
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-errors=$(go vet -tags="${BUILDTAGS}" $mod_vendor $(go list $mod_vendor -e ./...))
+errors=$(go vet -tags="${BUILDTAGS}" $(go list -e ./...))
 
 if [ -z "$errors" ]; then
 	echo 'Congratulations!  All Go source files have been vetted.'