diff --git a/spec_tests/hed-specification b/spec_tests/hed-specification
index dcd2b54dd..8e788027b 160000
--- a/spec_tests/hed-specification
+++ b/spec_tests/hed-specification
@@ -1 +1 @@
-Subproject commit dcd2b54ddd5df23525b3c29673bad199b86c3550
+Subproject commit 8e788027b4b7f2bd7b2c7af2f52b0ecb2f4a9867