diff --git a/lib/soprano b/lib/soprano
index 27b47d24..6ef7ef3c 160000
--- a/lib/soprano
+++ b/lib/soprano
@@ -1 +1 @@
-Subproject commit 27b47d241dd86cb931f7674b0e295310051f1d0f
+Subproject commit 6ef7ef3c9b0f38868006e315a8d3f1e6fdea99e0