Updates hydra

diff --git a/hydra b/hydra
index 8ffb3a08ac045a639c961f0caf7229f5dbbb0e70..c2ab91cbfd21509943883c6240f0b60fcf837819 160000 (submodule)
--- a/hydra
+++ b/hydra
@@ -1 +1 @@
-Subproject commit 8ffb3a08ac045a639c961f0caf7229f5dbbb0e70
+Subproject commit c2ab91cbfd21509943883c6240f0b60fcf837819