diff --git a/cmd/s3-gw/server.go b/cmd/s3-gw/server.go
index f8a20d9..694e9ee 100644
--- a/cmd/s3-gw/server.go
+++ b/cmd/s3-gw/server.go
@@ -74,6 +74,7 @@ func newServer(ctx context.Context, serverInfo ServerInfo) (*server, error) {
 
 		ln = tls.NewListener(ln, &tls.Config{
 			GetCertificate: tlsProvider.GetCertificate,
+			NextProtos:     []string{"h2"}, // required to enable HTTP/2 requests in `http.Serve`
 		})
 	}