diff --git a/third_party/ibex b/third_party/ibex
index f30e84ba00..4ed20f4ac3 160000
--- a/third_party/ibex
+++ b/third_party/ibex
@@ -1 +1 @@
-Subproject commit f30e84ba00b1c5e630dea0ba6fbf117ec69ebcc8
+Subproject commit 4ed20f4ac390c02316f32d6c11aba17ed9cca453