diff --git a/delta_chat_core b/delta_chat_core
index 612f26b..6c40d37 160000
--- a/delta_chat_core
+++ b/delta_chat_core
@@ -1 +1 @@
-Subproject commit 612f26bb6e85dcc540d37a82ca7ff4c4fd060bcd
+Subproject commit 6c40d37753fb03621d0e4c27bea86de9edd08497