diff --git a/spec_tests/hed-specification b/spec_tests/hed-specification
index 54659951..5bc506ca 160000
--- a/spec_tests/hed-specification
+++ b/spec_tests/hed-specification
@@ -1 +1 @@
-Subproject commit 54659951ca1a2f5e481ef87d98d9de30036f9f56
+Subproject commit 5bc506ca8b98d0e44d5cb7e61f590625d73014e1