diff --git a/eth2.0-spec-tests b/eth2.0-spec-tests
index 36fffa8..c9015f5 160000
--- a/eth2.0-spec-tests
+++ b/eth2.0-spec-tests
@@ -1 +1 @@
-Subproject commit 36fffa82eacc579da4b41a7d14f00adfbc25430f
+Subproject commit c9015f53590ce36de849980a0b6fc77a1a09defc