diff --git a/spec_tests/hed-specification b/spec_tests/hed-specification
index d7d174fde..33f48d286 160000
--- a/spec_tests/hed-specification
+++ b/spec_tests/hed-specification
@@ -1 +1 @@
-Subproject commit d7d174fde455b42c0c0a0534b3566f76fac53496
+Subproject commit 33f48d286ea3cb69e8e1c77a9b10379d676c6af8