diff --git a/README.md b/README.md
index f3b4433e2363bde08100f5ffa025ebbf04913fcb..dcb4421a5598f65235c75fd8e013cac73ceccefc 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,7 @@
 circles-android
+
+includes submodule dependency from https://gitlab.futo.org/circles/matrix-android-sdk.git
+pointing on main branch
+
+to update submodule use:
+git submodule update --remote