diff --git a/caosdb-proto b/caosdb-proto
index 5eec00721e7b7d9bb6303db65998ac3c9c51f10d..640b1dd5a085a3f1ed26880103da0148c017e28f 160000
--- a/caosdb-proto
+++ b/caosdb-proto
@@ -1 +1 @@
-Subproject commit 5eec00721e7b7d9bb6303db65998ac3c9c51f10d
+Subproject commit 640b1dd5a085a3f1ed26880103da0148c017e28f