diff --git a/.gitmodules b/.gitmodules
index 5b7c3c1b5..1e5245bf4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "src/proto"]
 	path = src/proto
 	url = git@***REMOVED***:~/_protobuf/gradido_protobuf
+[submodule "dependencies/iroha-ed25519"]
+	path = dependencies/iroha-ed25519
+	url = ssh://git@***REMOVED***/~/Forks/iroha-ed25519.git
diff --git a/dependencies/iroha-ed25519 b/dependencies/iroha-ed25519
new file mode 160000
index 000000000..1fdf5b6e1
--- /dev/null
+++ b/dependencies/iroha-ed25519
@@ -0,0 +1 @@
+Subproject commit 1fdf5b6e10be2b1d7118aa3c32dc7acde02cb0cd
diff --git a/dependencies/mariadb-connector-c b/dependencies/mariadb-connector-c
index 9ba8e32f6..947357354 160000
--- a/dependencies/mariadb-connector-c
+++ b/dependencies/mariadb-connector-c
@@ -1 +1 @@
-Subproject commit 9ba8e32f6d0fe449114d8eb369cf29303257b460
+Subproject commit 947357354a92cbb7c15b1e9087d085fe65f75f5e