diff --git a/cpp/qfr b/cpp/qfr
index 89412bc..6df1620 160000
--- a/cpp/qfr
+++ b/cpp/qfr
@@ -1 +1 @@
-Subproject commit 89412bc34b0cd8dcb0010b17d81b26180023394b
+Subproject commit 6df1620c2b2d684aac72f3e00f9e98fd454fcf09