diff --git a/spec_tests/hed-specification b/spec_tests/hed-specification
index 8f1c01406..c47fff949 160000
--- a/spec_tests/hed-specification
+++ b/spec_tests/hed-specification
@@ -1 +1 @@
-Subproject commit 8f1c014062f629dc7b88d625fbee14f4c88455ba
+Subproject commit c47fff949db70c9105c875bbdfdf0d11389ffd68