diff --git a/isl b/isl
index 660ac0ac9c02dac5cc80faa3fe136fd2ff3018cb..89c652adaa7d0222d170998b065160cd732c237d 160000
--- a/isl
+++ b/isl
@@ -1 +1 @@
-Subproject commit 660ac0ac9c02dac5cc80faa3fe136fd2ff3018cb
+Subproject commit 89c652adaa7d0222d170998b065160cd732c237d