diff --git a/Makefile b/Makefile
index 601a74ef0..6707e342c 100644
--- a/Makefile
+++ b/Makefile
@@ -8,6 +8,9 @@ usage:
 vet:
 	./tool/go vet ./...
 
+tidy:
+	./tool/go mod tidy -compat=1.17
+
 updatedeps:
 	./tool/go run github.com/tailscale/depaware --update tailscale.com/cmd/tailscaled
 	./tool/go run github.com/tailscale/depaware --update tailscale.com/cmd/tailscale