Updates hydra and metadot

diff --git a/hydra b/hydra
index 3249dae86c7034df7c8668260119590037ccef8f..21b7002b22f659c861029673ad9d69911fb86129 160000 (submodule)
--- a/hydra
+++ b/hydra
@@ -1 +1 @@
-Subproject commit 3249dae86c7034df7c8668260119590037ccef8f
+Subproject commit 21b7002b22f659c861029673ad9d69911fb86129

diff --git a/metadot b/metadot
index 98f701fb1b82f3e46790adcffb7bba4ae6e7cee8..3a3930dd664e9a222778bb90ac8ba00b15f5a9e5 160000 (submodule)
--- a/metadot
+++ b/metadot
@@ -1 +1 @@
-Subproject commit 98f701fb1b82f3e46790adcffb7bba4ae6e7cee8
+Subproject commit 3a3930dd664e9a222778bb90ac8ba00b15f5a9e5