diff --git a/spec_tests/hed-specification b/spec_tests/hed-specification
index 8772db30c..33f48d286 160000
--- a/spec_tests/hed-specification
+++ b/spec_tests/hed-specification
@@ -1 +1 @@
-Subproject commit 8772db30cf7c63a4fc224aac9e7daf504f276a1b
+Subproject commit 33f48d286ea3cb69e8e1c77a9b10379d676c6af8