diff --git a/backend/spqlios-arithmetic b/backend/spqlios-arithmetic
index d604503..6ac426c 160000
--- a/backend/spqlios-arithmetic
+++ b/backend/spqlios-arithmetic
@@ -1 +1 @@
-Subproject commit d6045033e510315437c46ed2ddb80cfbb454950b
+Subproject commit 6ac426c9006f123738d2fcaa6f5bb1c33cd890e3