diff --git a/caosdb-proto b/caosdb-proto
index 13d083b84400507f6f1967a099e2af006af2a231..c6405e538c179d2a8af952f85d9e9dc51fbadb92 160000
--- a/caosdb-proto
+++ b/caosdb-proto
@@ -1 +1 @@
-Subproject commit 13d083b84400507f6f1967a099e2af006af2a231
+Subproject commit c6405e538c179d2a8af952f85d9e9dc51fbadb92