diff --git a/backend/apps/ifc_validation_models b/backend/apps/ifc_validation_models
index 7e69c0e..d6ef6b0 160000
--- a/backend/apps/ifc_validation_models
+++ b/backend/apps/ifc_validation_models
@@ -1 +1 @@
-Subproject commit 7e69c0e40c066fbd9ab277bd86b32eca1a5660a9
+Subproject commit d6ef6b03bf6b89616a377a32ad20fe34a28a8661