github actions ci: test different Go versions

1 files changed, 2 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index c9c9975..e8fc4d7 100644
--- a/Makefile
+++ b/Makefile
@@ -51,6 +51,7 @@ ci:
 	go clean -modcache
 	# GOPROXY=off makes sure we fail instead of making network requests
 	# (we should not need any!)
-	GOPROXY=off ./build.bash
+	# "-mod=vendor" is required for Go 1.11
+	GOPROXY=off ./build.bash -mod=vendor
 	# Delete "vendor" dir
 	rm -R vendor