diff --git a/gwinc/test/ref_hash b/gwinc/test/ref_hash
index c5170040deb0cbb983eed01994a3cc7da40580cf..4b7ed899be21f12e7e2fa8a0c1e0fc8fc69c46eb 100644
--- a/gwinc/test/ref_hash
+++ b/gwinc/test/ref_hash
@@ -1 +1 @@
-9ff4ba5463895698f48c243e329c4138ab163c1f
+06ec15931ae295717ac564ca892f2f92d33430c7