diff --git a/spec_tests/hed-specification b/spec_tests/hed-specification
index 9f23a3e8e..dcd2b54dd 160000
--- a/spec_tests/hed-specification
+++ b/spec_tests/hed-specification
@@ -1 +1 @@
-Subproject commit 9f23a3e8e69a6f8f2e371afa3c0b475abd8b6a8a
+Subproject commit dcd2b54ddd5df23525b3c29673bad199b86c3550